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Verse-by-Verse Commentary

The Book of Genesis

Chapter 15: The Covenant Between the Pieces

After the battle and the refusal of Sodom's reward, the word of the LORD comes to Abram in a vision: "Fear not, Abram: I am thy shield, and thy exceeding great reward." Abram pours out the ache beneath all his blessings, childlessness, and God takes him outside to count stars. Then comes the sentence on which the gospel's doctrine of justification stands: "And he believed in the LORD; and he counted it to him for righteousness." Before the chapter ends, God binds Himself in covenant blood, a smoking furnace and a burning lamp passing alone between the pieces while Abram sleeps. The covenant rests on God's faithfulness, not Abram's ability. When Abram believed the LORD, God counted that faith as righteousness. From the beginning, salvation has been by God's grace received through faith, never earned by human merit. Yet throughout Scripture genuine faith is never mere intellectual agreement. Abraham's faith obeyed God's voice (Hebrews 11:8; James 2:21-24), and under the New Covenant that same obedient faith responds to the gospel through repentance, baptism in the name of Jesus Christ, and receiving the Holy Spirit (Acts 2:38; John 3:5). Genesis 15 first declares the principle of justification by faith, while the rest of Scripture reveals what living, saving faith looks like in every covenant.

About This Commentary

This is a verse-by-verse study of Genesis chapter 15. For each section you will find the KJV text, the Hebrew words that sharpen the meaning, plain explanation, and a Gospel Focus where the text touches the one God and His plan of salvation. Chapter 15 is the great chapter of faith counted as righteousness and of the covenant God swore alone. Every Scripture quotation is from the King James Version.

Setting the Stage

The Timing

After These Things

Fresh from war and from refusing Sodom's riches, Abram might fear reprisal and count his losses. God answers both: I am your shield, and I am your reward.

The Verse

Faith Counted as Righteousness

Genesis 15:6 is quoted in Romans 4, Galatians 3, and James 2 as the foundation of justification by faith. Before circumcision, before the law, Abram believed, and God counted it righteousness.

The Covenant

God Passes Alone

In the ancient rite, both parties walked between the divided animals. Here Abram sleeps while God alone, as a smoking furnace and burning lamp, passes through. The covenant rests on God's faithfulness only.

The Prophecy

Four Hundred Years Foretold

Centuries before Egypt, God announces the sojourn, the affliction, the judgment of the oppressor, and the exodus with great substance, history written in advance and fulfilled to the day.

The Word in a Vision

I Am Thy Shield (Genesis 15:1)

To the man who refused the world's reward, God gives Himself as the reward.

Genesis 15:1

Thy Exceeding Great Reward

"After these things the word of the LORD came unto Abram in a vision, saying, Fear not, Abram: I am thy shield, and thy exceeding great reward."

Hebrew Study

"Fear not," al-tira (אַל־תִּירָא). God's first word to Abram after the battle addresses something Abram has not said aloud. The man who has just refused a king's reward and made enemies of four kings is met, before anything else, with a command not to be afraid.

"I am thy shield," anokhi magen lakh (אָנֹכִי מָגֵן לָךְ). God meets Abram's fear with Himself. He does not promise Abram an army or a wall but says "I am thy shield" -- the protection is a Person, standing between him and whatever he dreads.

"thy exceeding great reward," sekharkha harbeh meʾod (שְׂכָרְךָ הַרְבֵּה מְאֹד). Abram had just turned down the spoil of Sodom, and God answers the loss with Himself: "I am thy shield, and thy exceeding great reward". The Giver, not merely the gift, is the reward of faith.

Explanation

"After these things" ties the vision to chapter 14: Abram has just made enemies of the East's most powerful coalition and turned down the wealth of Sodom. Fear and loss would be natural, and God speaks to both. "Fear not, Abram" is the Bible's first "fear not," and the reasons follow in two "I am" declarations: "I am thy shield," against every Chedorlaomer who might return, and "thy exceeding great reward," worth more than every thread and shoelatchet Sodom kept. This is also the first time Scripture says "the word of the LORD came" to anyone, the formula that will introduce the prophets ever after. Abram refused a king's payment and received God's presence; he traded goods for God and came out immeasurably ahead.

Gospel Focus

Notice that God does not say "I will give you a shield and a reward"; He says "I am." The gift of the gospel, first and last, is God Himself. The Psalms take up both halves of the promise: "But thou, O LORD, art a shield for me" (Psalm 3:3) and "Thou art my portion, O LORD" (Psalm 119:57). Everything else the covenant brings, land, seed, blessing, flows out of this one possession. The believer who can say with David, "The LORD is the portion of mine inheritance" (Psalm 16:5), is rich in every famine and safe in every war, and the one who has everything else without Him has neither shield nor reward. God answers our renunciations with Himself, and there is no better exchange in the universe.

The Great Sentence

He Believed, and It Was Counted as Righteousness (Genesis 15:2-6)

Abram brings his honest ache before God, and God leads him outside to count the stars. There Abram believes the LORD, and God counts his faith as righteousness, the foundational Old Testament declaration of justification by faith: righteousness received by God's grace through believing His promise. The rest of Scripture will show that genuine faith is living, obedient faith that responds to God's word in every covenant.

Genesis 15:2-6

Tell the Stars, If Thou Be Able

"And Abram said, Lord GOD, what wilt thou give me, seeing I go childless, and the steward of my house is this Eliezer of Damascus? And Abram said, Behold, to me thou hast given no seed: and, lo, one born in my house is mine heir. And, behold, the word of the LORD came unto him, saying, This shall not be thine heir; but he that shall come forth out of thine own bowels shall be thine heir. And he brought him forth abroad, and said, Look now toward heaven, and tell the stars, if thou be able to number them: and he said unto him, So shall thy seed be. And he believed in the LORD; and he counted it to him for righteousness."

Hebrew Study

"believed," he'emin (הֶאֱמִין), from the root aman. To lean one's whole weight on something firm; the root gives us "Amen." Abram's faith was not a feeling about the promise but a resting of his full weight upon the God who spoke it.

"counted," chashav (חָשַׁב). A bookkeeping word: to reckon, credit, count to someone's account. Righteousness Abram did not have by works was counted to him by God on the basis of faith. This is the Bible's first explicit statement of justification.

Explanation

For the first time, Abram speaks back to God, and his words carry a decade of quiet grief: "what wilt thou give me, seeing I go childless?" By the custom of the age, a childless man's estate passed to a trusted house servant, "Eliezer of Damascus." Verse 4 answers directly: not Eliezer, but "he that shall come forth out of thine own bowels," a son of his own body. Then God takes the old man outside under the ancient night sky: "tell the stars, if thou be able to number them" (tell, in the old sense, means count), and, "So shall thy seed be." Verse 6 records what happened in Abram's heart and in heaven's ledger: "And he believed in the LORD; and he counted it to him for righteousness." No sacrifice offered, no work performed, no rite yet given; a man leaned on God's bare word, and God wrote "righteous" over his name.

Gospel Focus

The New Testament returns to this verse like a cornerstone. Paul builds Romans 4 on it: "For what saith the scripture? Abraham believed God, and it was counted unto him for righteousness" (Romans 4:3), noting that it happened before circumcision (Romans 4:10), so that no ordinance, ancestry, or human work earns what only God's grace gives and faith receives. Galatians 3:6-7 makes it the birth certificate of every believer: "they which are of faith, the same are the children of Abraham." James then completes the picture: the faith by which Abraham was counted righteous was later demonstrated and brought to maturity through his obedience on Mount Moriah, "and he was called the Friend of God" (James 2:23). Genuine faith always obeys. This is the balance of the Apostolic gospel: we are saved by God's grace through faith and never by our own merit (Ephesians 2:8-9), yet saving faith is never mere intellectual belief. It is living, obedient faith that responds to God's word, repenting, being baptized in the name of Jesus Christ, and receiving the gift of the Holy Spirit as proclaimed in Acts 2:38. Abraham's life shows that the faith God counts as righteousness is the same faith that continues to trust and obey Him.

The Question and the Rite

Take Me an Heifer (Genesis 15:7-11)

Abram asks for assurance, and God answers with the most solemn ceremony the ancient world knew.

Genesis 15:7-11

Whereby Shall I Know?

"And he said unto him, I am the LORD that brought thee out of Ur of the Chaldees, to give thee this land to inherit it. And he said, Lord GOD, whereby shall I know that I shall inherit it? And he said unto him, Take me an heifer of three years old, and a she goat of three years old, and a ram of three years old, and a turtledove, and a young pigeon. And he took unto him all these, and divided them in the midst, and laid each piece one against another: but the birds divided he not. And when the fowls came down upon the carcases, Abram drove them away."

Hebrew Study

"to inherit it," lerishtah (לְרִשְׁתָּהּ). God states the purpose of the whole journey from Ur: He brought Abram out in order to give him this land to inherit it. The exodus from Chaldea was never an end in itself, but a means to a possession.

"whereby shall I know," bammah eda (בַּמָּה אֵדַע). Abram asks for assurance -- not out of unbelief, for the previous verses have already credited him with faith, but as a man asking how he may hold the promise with certainty. God does not rebuke the question; He answers it with a covenant.

"divided them in the midst," vayvatter battavekh (וַיְבַתֵּר בַּתָּוֶךְ). God ratifies His promise by a covenant of divided animals. At His command Abram cuts the heifer, the goat, and the ram in two and lays each piece one against another, making a path of blood between them.

"drove them away," vayyashev otam (וַיַּשֵּׁב אֹתָם). Abram guards the sacrifice, driving off the birds of prey that come down upon it. Through the long wait for God to act, the whole of his part is to keep what God asked for from being torn to pieces.

Explanation

God introduces Himself with a covenant formula, "I am the LORD that brought thee out of Ur," the very pattern He will use at Sinai ("I am the LORD thy God, which have brought thee out of the land of Egypt," Exodus 20:2). Abram's question in verse 8 is not unbelief; verse 6 has just settled his faith. It is faith asking for covenant confirmation, "whereby shall I know?", and God honors it. The animals cut in two and laid opposite each other belong to the ancient world's most binding rite: covenant parties passed between the pieces, invoking on themselves the animals' fate if they broke their word. Jeremiah 34:18 describes exactly this ceremony. Verse 11 adds a vivid, human touch: while the sun crawled down, "the fowls came down upon the carcases, Abram drove them away." The fowls here are birds of prey, and the man guarded the sacrifice until God came to it.

Gospel Focus

Abram's flapping cloak against the fowls is a picture worth keeping. Between the laying of the sacrifice and the coming of the fire there is often a waiting, and the scavengers always come, doubts, distractions, the devourer, to tear at what you have consecrated before God confirms it. Drive them away. Guard your consecration through the long afternoon. Jesus warned that when the word is sown, "then cometh the wicked one, and catcheth away that which was sown" (Matthew 13:19); the waiting saint keeps watch over the altar until God answers, "And let us not be weary in well doing: for in due season we shall reap, if we faint not" (Galatians 6:9).

History Foretold

Four Hundred Years (Genesis 15:12-16)

In horror of great darkness, God unrolls the future: Egypt, affliction, judgment, exodus, and a patience that waits on Amorite iniquity.

Genesis 15:12-16

The Iniquity of the Amorites Is Not Yet Full

"And when the sun was going down, a deep sleep fell upon Abram; and, lo, an horror of great darkness fell upon him. And he said unto Abram, Know of a surety that thy seed shall be a stranger in a land that is not theirs, and shall serve them; and they shall afflict them four hundred years; And also that nation, whom they shall serve, will I judge: and afterward shall they come out with great substance. And thou shalt go to thy fathers in peace; thou shalt be buried in a good old age. But in the fourth generation they shall come hither again: for the iniquity of the Amorites is not yet full."

Hebrew Study

"a deep sleep," tardemah (תַּרְדֵּמָה). Not ordinary rest but a sleep that falls upon a man and overwhelms him. Abram is laid out helpless at the very moment the covenant is about to be made, so that everything which follows is God's doing and not his.

"an horror of great darkness," eimah chashekhah gedolah (אֵימָה חֲשֵׁכָה גְדֹלָה). Before God speaks of Egypt, He lets Abram feel something of it. The dread falls on him as the sun goes down, and the words that follow explain the darkness he has just been made to taste.

"a stranger in a land that is not theirs," ger beʾeretz lo lahem (גֵּר בְּאֶרֶץ לֹא לָהֶם). God foretells the four hundred years in Egypt and the great deliverance to follow: the nation that afflicts them He will judge, and afterward they shall come out with great substance. The promise of a land is given together with a warning of long exile before it.

"the iniquity of the Amorites," avon haʾemori (עֲוֹן הָאֱמֹרִי). Here is the reason for the delay -- not indifference, but patience that holds back judgment on the Amorites until their "iniquity... is not yet full." God's slowness with one people is bound up with His timing for another.

Explanation

A "deep sleep" (the word used when God made Eve, 2:21) falls on Abram, and with it "an horror of great darkness," for what he is about to hear contains centuries of his children's tears. God foretells the Egyptian sojourn with startling precision: strangers in a foreign land, enslaved and afflicted "four hundred years"; the oppressor judged; the exodus "with great substance" (fulfilled when Israel left with Egypt's silver and gold, Exodus 12:35-36). Exodus 12:40-41 records the fulfillment: "the sojourning of the children of Israel, who dwelt in Egypt, was four hundred and thirty years," from the covenant era to the exodus, "the selfsame day." Abram himself will die "in peace" and be buried "in a good old age" (fulfilled at 25:8). And verse 16 opens one of Scripture's greatest windows into God's justice: Israel returns "in the fourth generation," because "the iniquity of the Amorites is not yet full." Canaan's peoples would get four more centuries of patience before judgment; the conquest, when it finally came, was not land theft but a sentence executed after the longest stay of execution in history.

Gospel Focus

Here is a God who writes history in advance and keeps it to the day, "even the selfsame day" (Exodus 12:41). The same precision stands behind every promise His people hold: "there hath not failed one word of all his good promise" (1 Kings 8:56). And verse 16 answers a hard modern question, how could God give Israel a land already inhabited?, with divine patience as the reply: He waited four hundred years, measuring Amorite iniquity, "not willing that any should perish" (2 Peter 3:9), and acted only when the measure was full. God's judgments are never hasty and His timetables never slip. For the believer in a long dark waiting, Abram's vision preaches: the horror of great darkness had an exodus on the far side of it, dated before the affliction ever began.

The Covenant Sworn

The Smoking Furnace and the Burning Lamp (Genesis 15:17-21)

God alone passes between the pieces, and the promise becomes an unbreakable covenant resting on Him only.

Genesis 15:17-21

On the Same Day the LORD Made a Covenant

"And it came to pass, that, when the sun went down, and it was dark, behold a smoking furnace, and a burning lamp that passed between those pieces. In the same day the LORD made a covenant with Abram, saying, Unto thy seed have I given this land, from the river of Egypt unto the great river, the river Euphrates: The Kenites, and the Kenizzites, and the Kadmonites, And the Hittites, and the Perizzites, and the Rephaims, And the Amorites, and the Canaanites, and the Girgashites, and the Jebusites."

Hebrew Study

"a smoking furnace, and a burning lamp," tannur ashan velappid esh (תַנּוּר עָשָׁן וְלַפִּיד אֵשׁ). God appears in the dark as smoke and fire. Abram sees no form and hears no footstep; what moves through the sacrifice is light and smoke, and it is God Himself.

"passed between those pieces," asher avar bein haggezarim (אֲשֶׁר עָבַר בֵּין הַגְּזָרִים). God alone passes between the pieces. Abram, still under the deep sleep, walks nowhere and swears nothing -- the covenant is one-sided from beginning to end.

"made a covenant," karat berit (כָּרַת בְּרִית). Literally to "cut" a covenant, the very act just described in the divided animals. In the same day the LORD binds Himself by oath to give the land to Abram's seed, and marks out its borders from the river of Egypt to the Euphrates.

Explanation

In the dark, the covenant fire appears: "a smoking furnace, and a burning lamp," emblems of the presence of God, who so often meets His people in fire and smoke, the burning bush, the pillar of fire, Sinai wrapped in smoke (Exodus 3:2; 13:21; 19:18). And here is the wonder of the ceremony: only the fire passes between the pieces. In the standard rite both parties walked the bloody corridor; here Abram is asleep, a spectator, contributing nothing but the animals God requested. God swears alone, because this covenant depends on God alone. Verse 18 states the grant in legal past tense, "have I given this land," done, in heaven's books, and verses 18 through 21 survey its boundaries, "from the river of Egypt unto the great river, the river Euphrates," naming the ten peoples then holding it. The scope was reached in Solomon's reign (1 Kings 4:21), and the covenant stands.

Gospel Focus

Hebrews tells us why God swore this way: "because he could swear by no greater, he sware by himself" (Hebrews 6:13), that "we might have a strong consolation" (Hebrews 6:18). A covenant kept by two can be broken by either; a covenant sworn by God alone is as unbreakable as God. This is the bedrock beneath the believer's assurance: salvation's covenant was likewise cut while we could contribute nothing, "while we were yet sinners, Christ died for us" (Romans 5:8), God Himself, in Christ, walking alone through the blood of the sacrifice, His own. The One who passed between Abram's pieces as fire and smoke is the One who said, "This cup is the new testament in my blood" (Luke 22:20), testament being the old word for covenant. Abram slept while God swore; we were helpless while God saved. That is why grace can be trusted with the whole weight of a soul.

Chapter 15 in Review

Genesis 15 is the chapter of faith and covenant. To the man who refused Sodom's reward, God declares Himself shield and exceeding great reward. Abram voices his childless grief, God shows him the stars, and the Bible's great sentence follows: "he believed in the LORD; and he counted it to him for righteousness." Then faith's request for assurance is answered with the ancient rite of the pieces, and while Abram sleeps in horror of great darkness, God unrolls four centuries of future, Egypt, affliction, judgment, and exodus, and passes alone between the pieces as a smoking furnace and a burning lamp, swearing the land grant by Himself.

For the Apostolic reader, this chapter lays one of the gospel's great foundations. Justification is by God's grace received through faith, never earned by human merit, and genuine faith continues in obedience, as Abram's did. Like Abram's covenant, the covenant of our salvation rests entirely upon God's faithfulness. God alone passed between the pieces, foreshadowing the day He would seal the New Covenant at Calvary in His own blood, where Christ became our shield and our exceeding great reward. And the God who foretold Israel's bondage centuries in advance, measured the iniquity of the Amorites to its appointed fullness, and fulfilled His word "on that very same day" is the God whose promises His people can trust without reservation. Trust Him with the kind of faith that believes His promise and obeys His voice; that is the faith God has always counted as righteousness.

Key Takeaways
  • God's answer to renunciation is Himself: "I am thy shield, and thy exceeding great reward" (15:1).
  • Genesis 15:6 is the cornerstone of justification by faith, quoted in Romans 4, Galatians 3, and James 2.
  • Abraham's faith was a faith that obeyed (Hebrews 11:8; James 2:21-22); grace is the source, faith is the means, and that faith takes hold of the gospel God gives.
  • Faith may honestly ask "whereby shall I know?"; God honors faith that seeks confirmation (15:8).
  • Drive the fowls from your sacrifice; guard consecration through the waiting (15:11).
  • God wrote Israel's four hundred years in advance and fulfilled them to the very day (Exodus 12:41).
  • God alone passed between the pieces: the covenant, like salvation, rests on His faithfulness only (Hebrews 6:13-18).

Questions for Reflection

  • Is God Himself your reward, or only His gifts?
  • Are you leaning your whole weight on what God has said, the faith of Genesis 15:6?
  • Is your faith like Abraham's, one that believes God's promise and obeys His voice, or only a belief that never moves your feet toward the gospel (John 3:5; Acts 2:38)?
  • What birds of prey are circling your consecration in this waiting season, and are you driving them off?
  • Does your assurance rest on your grip on God, or on the covenant He swore alone?

References & Sources

Scripture is quoted from the King James Version (KJV). The Hebrew terms are standard and can be checked in any Hebrew lexicon. Supporting passages are listed so every claim can be verified in its own setting. If anything here does not look right, a verse, a reference, or a wording, please tell us at info@FruitBearers.net. Thank you for helping us keep Bible Learning error free.

  1. God our shield and portion: Genesis 15:1; Psalm 3:3; 16:5; 119:57.
  2. Faith accounted for righteousness: Genesis 15:6; Romans 4:1-25; Galatians 3:6-9; James 2:21-23.
  3. Grace, faith, and obedient response: Ephesians 2:8-9; Acts 2:38; Hebrews 11:8-19.
  4. The covenant rite of the pieces: Genesis 15:9-10, 17; Jeremiah 34:18-19.
  5. The four hundred years and the exodus to the day: Genesis 15:13-14; Exodus 12:35-36, 40-41; Acts 7:6-7.
  6. The iniquity of the Amorites and God's patience: Genesis 15:16; Leviticus 18:24-25; 2 Peter 3:9.
  7. God swearing by Himself: Hebrews 6:13-18; the covenant in Christ's blood, Luke 22:20; Romans 5:8.
  8. The boundaries reached: Genesis 15:18-21; 1 Kings 4:21.
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