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Verse-by-Verse Commentary

The Book of Isaiah

Chapter 48: For My Name's Sake

Chapter 48 closes the section on Babylon with God's frank rebuke of His own stubborn people, 'obstinate,' with 'an iron sinew' for a neck, yet His astonishing determination to spare them, 'For my name's sake will I defer mine anger... For mine own sake, even for mine own sake, will I do it.' He reminds them He alone foretold the future, refined them 'in the furnace of affliction,' and will not give His glory to another. He grieves over the peace they forfeited by disobedience, 'O that thou hadst hearkened to my commandments! then had thy peace been as a river.' And He sounds the great call of the exodus from exile: 'Go ye forth of Babylon.'

About This Commentary

This is a verse-by-verse study of Isaiah chapter 48, which closes the Babylon section of the Book of Comfort. For each section you will find the KJV text, the Hebrew words that sharpen the meaning, plain explanation, and a Gospel Focus. This chapter shows God's patience with a stubborn people for His own name's sake, His refining love, and His call to leave Babylon. Every Scripture quotation is from the King James Version.

Setting the Stage

The Stubborn

An Iron Sinew

God rebukes a people who use His name but not in truth, obstinate, with a neck like iron.

The Furnace

For My Name's Sake

God defers His anger for His own name's sake, refining His people in the furnace of affliction.

The Sent One

First and Last

"I am he; I am the first, I also am the last"; the Creator, whose Spirit has sent the Servant.

The Call

Go Forth of Babylon

God grieves the peace they lost, and calls them to leave Babylon with a song, for He has redeemed them.

The Stubborn

Obstinate, With a Neck of Iron (Isaiah 48:1-8)

God confronts a people who wear His name but not in truth, and reminds them that He foretold the future in advance precisely because He knew how stubborn they were, lest they credit their idols for what He alone had done.

Isaiah 48:1-8

A Transgressor From the Womb

"Hear ye this, O house of Jacob, which are called by the name of Israel, and are come forth out of the waters of Judah, which swear by the name of the LORD, and make mention of the God of Israel, but not in truth, nor in righteousness. For they call themselves of the holy city, and stay themselves upon the God of Israel; The LORD of hosts is his name. I have declared the former things from the beginning; and they went forth out of my mouth, and I shewed them; I did them suddenly, and they came to pass. Because I knew that thou art obstinate, and thy neck is an iron sinew, and thy brow brass; I have even from the beginning declared it to thee; before it came to pass I shewed it thee: lest thou shouldest say, Mine idol hath done them, and my graven image, and my molten image, hath commanded them. Thou hast heard, see all this; and will not ye declare it? I have shewed thee new things from this time, even hidden things, and thou didst not know them. They are created now, and not from the beginning; even before the day when thou heardest them not; lest thou shouldest say, Behold, I knew them. Yea, thou heardest not; yea, thou knewest not; yea, from that time that thine ear was not opened: for I knew that thou wouldest deal very treacherously, and wast called a transgressor from the womb."

Hebrew Study

"thy neck is an iron sinew," gid barzel (גִּיד בַּרְזֶל). The neck is the seat of stubbornness; a "stiff-necked" people refuse to bow or turn. Isaiah makes it vivid: their neck is iron, their forehead brass, unbending, unblushing, hardened against God's word and shameless in their sin.

"but not in truth," lo be-emeth (לֹא בֶאֱמֶת). They used the right words, swore by the LORD's name, called themselves citizens of "the holy city," yet "not in truth, nor in righteousness." It is the danger of religion without reality: the name of God on the lips and something else in the heart.

Explanation

God addresses His people with a sobering honesty. They bear His name, "swear by the name of the LORD," and call themselves "of the holy city", but "not in truth, nor in righteousness." Their religion is real on the surface and hollow underneath. God recounts that He "declared the former things from the beginning... I did them suddenly, and they came to pass," and He explains why He foretold everything so plainly: "Because I knew that thou art obstinate, and thy neck is an iron sinew, and thy brow brass." He announced the future in advance "lest thou shouldest say, Mine idol hath done them." Knowing how quick they would be to credit their idols, God made His prophecy unmistakable. He even reveals "new things... hidden things" they never knew, so they cannot claim, "Behold, I knew them." And He names their nature with painful candor: "I knew that thou wouldest deal very treacherously, and wast called a transgressor from the womb." God is under no illusion about His people; He knew their sin from the start, and loved them still.

Gospel Focus

Two humbling truths meet here. First, it is possible to bear God's name "but not in truth." These people swore by the LORD, claimed the holy city, and leaned on the God of Israel with their mouths, yet their hearts were far off, exactly the empty worship Jesus condemned (Matthew 15:8). Religion can be perfectly correct on the outside and hollow within. The question is not whether we use God's name, but whether we do so "in truth." Second, and wonderfully, God loves His people knowing the worst about them. "I knew that thou wouldest deal very treacherously, and wast called a transgressor from the womb." God had no illusions; He saw their obstinate, iron-necked, treacherous nature from the beginning, and chose them anyway. This is the very shape of grace: "while we were yet sinners, Christ died for us" (Romans 5:8). He does not love us because we hid our sin well; He loves us with full knowledge of it. That means your worst, the sin you are most ashamed of, is not news to God, and it has not changed His mind about redeeming you. Come to Him "in truth," honestly, and find that the God who knew you were "a transgressor from the womb" still says, "for my name's sake will I defer mine anger."

The Furnace

I Have Chosen Thee in the Furnace (Isaiah 48:9-11)

God explains why He spares such a stubborn people: not for anything in them, but for His own name and glory, refining them in affliction and refusing to hand His glory to any other.

Isaiah 48:9-11

For Mine Own Sake Will I Do It

"For my name's sake will I defer mine anger, and for my praise will I refrain for thee, that I cut thee not off. Behold, I have refined thee, but not with silver; I have chosen thee in the furnace of affliction. For mine own sake, even for mine own sake, will I do it: for how should my name be polluted? and I will not give my glory unto another."

Hebrew Study

"the furnace of affliction," kur oni (כּוּר עֹנִי). A smelting furnace, where ore is heated until the dross rises and is skimmed off. God's chosen are refined not with the gentle process of silver-working but in the fire of affliction, purified through suffering, "the trial of your faith... though it be tried with fire" (1 Peter 1:7).

"I will not give my glory unto another," kevodi le-acher (כְּבוֹדִי לְאַחֵר). God guards His glory jealously; He will not share it with idols or rivals (compare Isaiah 42:8). His salvation of His people is finally about His own name and glory, which is our deepest security, for it rests on Him, not us.

Explanation

Why would God spare a people so stubborn? These three verses give the stunning answer: not for their sake, but for His own. "For my name's sake will I defer mine anger, and for my praise will I refrain for thee, that I cut thee not off." God holds back the judgment they deserve because His own name and reputation are bound up with them. Yet His mercy is not soft; it refines: "I have refined thee, but not with silver; I have chosen thee in the furnace of affliction." Their suffering was not rejection but purification. And He repeats the ground of it all with emphasis: "For mine own sake, even for mine own sake, will I do it: for how should my name be polluted? and I will not give my glory unto another." God's saving of His people is ultimately for His own glory, so that His name is not disgraced and His glory is not handed to idols.

Gospel Focus

"For mine own sake, even for mine own sake, will I do it." This is one of the most freeing truths in the Bible: God saves us for His own name's sake, not because we earned it. That may sound at first like cold comfort, until we realize it is our greatest security. If God saved us because of something in us, our salvation would be as shaky as we are; but because He saves "for mine own sake," it rests on His unchanging character and glory, and it cannot fail. He forgave "for his name's sake" (1 John 2:12), saved us "according to his own purpose and grace" (2 Timothy 1:9), and does it all "to the praise of the glory of his grace" (Ephesians 1:6). And notice the furnace: "I have chosen thee in the furnace of affliction." God's choosing did not exempt His people from the fire; it met them in it and used it to refine them. The affliction you are in may be the very furnace where God is purifying gold, "that the trial of your faith... might be found unto praise and honour and glory at the appearing of Jesus Christ" (1 Peter 1:7). He is not punishing you in wrath but refining you in love, for His name's sake and your good. Rest in a salvation grounded in His glory, and let the furnace do its purifying work.

The Sent One

I Am the First, I Also Am the Last (Isaiah 48:12-16)

God calls His people to listen to the one who is first and last, the Creator of heaven and earth, who alone foretold Babylon's fall, and who speaks a mysterious word of the Servant sent by God and His Spirit.

Isaiah 48:12-16

The Lord GOD, and His Spirit, Hath Sent Me

"Hearken unto me, O Jacob and Israel, my called; I am he; I am the first, I also am the last. Mine hand also hath laid the foundation of the earth, and my right hand hath spanned the heavens: when I call unto them, they stand up together. All ye, assemble yourselves, and hear; which among them hath declared these things? The LORD hath loved him: he will do his pleasure on Babylon, and his arm shall be on the Chaldeans. I, even I, have spoken; yea, I have called him: I have brought him, and he shall make his way prosperous. Come ye near unto me, hear ye this; I have not spoken in secret from the beginning; from the time that it was, there am I: and now the Lord GOD, and his Spirit, hath sent me."

Hebrew Study

"I am the first, I also am the last," ani rishon ani acharon (אֲנִי רִאשׁוֹן אֲנִי אַחֲרוֹן). The title of the eternal God who spans all things, claimed by the risen Jesus, "I am the first and the last" (Revelation 1:17). The same LORD who laid earth's foundation is the Lord we know in Christ.

"the Lord GOD, and his Spirit, hath sent me." A mysterious verse. The speaker, who a moment before was the eternal God ("I am the first"), now speaks as one sent by God and His Spirit. It is the voice of the Servant-Messiah, the one God come to accomplish redemption, anointed by the Spirit and sent on His mission (compare Isaiah 61:1).

Explanation

God calls His people to listen to who He is: "I am he; I am the first, I also am the last." He is the Creator, "Mine hand also hath laid the foundation of the earth," at whose call the stars "stand up together." He alone declared Babylon's fall in advance; no idol did. He points to His chosen instrument, whom "the LORD hath loved," who "will do his pleasure on Babylon" (Cyrus again), saying, "I, even I, have spoken; yea, I have called him." Then comes verse 16, one of the most striking in the chapter. God says He has "not spoken in secret," and then, remarkably, the voice shifts: "and now the Lord GOD, and his Spirit, hath sent me." The one who is "the first and the last" speaks as the Sent One, sent by God and anointed by His Spirit. This is the voice of the coming Servant, the Messiah, God Himself come to save, anointed with the Spirit and sent on His redeeming mission.

Gospel Focus

Verse 16 opens a window on the mystery of redemption. The eternal God, "the first and the last," speaks as One sent: "the Lord GOD, and his Spirit, hath sent me." This is not a picture of three separate gods, for the whole chapter thunders "I am he... I will not give my glory unto another." It is the one God unfolding His plan of salvation: God Himself, come in the flesh as the Servant-Messiah, anointed by His own Spirit and sent on His mission. Isaiah says almost the same words in the mouth of the Messiah later: "The Spirit of the Lord GOD is upon me; because the LORD hath anointed me... he hath sent me" (Isaiah 61:1), words Jesus read in the synagogue and applied to Himself (Luke 4:18-21). Here, then, is the gospel foretold: the God who is first and last does not stay distant, but comes, anointed with His Spirit, sent to redeem. The Sender, the Sent, and the Spirit are the one God accomplishing our salvation, God manifest in the flesh (1 Timothy 3:16). When you read of the Father sending the Son and anointing Him with the Spirit, do not imagine three rival deities; behold the one God so committed to saving you that He came in person, in Christ, to do it.

The Call

Go Ye Forth of Babylon (Isaiah 48:17-22)

God reveals Himself as the Redeemer and Teacher who longs for His people's good, grieves the peace they forfeited by disobedience, and calls them to leave Babylon with singing, for He has redeemed them.

Isaiah 48:17-22

O That Thou Hadst Hearkened

"Thus saith the LORD, thy Redeemer, the Holy One of Israel; I am the LORD thy God which teacheth thee to profit, which leadeth thee by the way that thou shouldest go. O that thou hadst hearkened to my commandments! then had thy peace been as a river, and thy righteousness as the waves of the sea: Thy seed also had been as the sand, and the offspring of thy bowels like the gravel thereof; his name should not have been cut off nor destroyed from before me. Go ye forth of Babylon, flee ye from the Chaldeans, with a voice of singing declare ye, tell this, utter it even to the end of the earth; say ye, The LORD hath redeemed his servant Jacob. And they thirsted not when he led them through the deserts: he caused the waters to flow out of the rock for them: he clave the rock also, and the waters gushed out. There is no peace, saith the LORD, unto the wicked."

Hebrew Study

"O that thou hadst hearkened," lu hiqshavta (לוּא הִקְשַׁבְתָּ). A wistful "if only", the language of divine longing and grief. God expresses genuine sorrow over the good His people missed by disobedience, "then had thy peace been as a river." He wanted for them a flowing, unfailing peace they threw away.

"Go ye forth of Babylon," tseu mi-Bavel (צְאוּ מִבָּבֶל). The command to leave the place of captivity. The New Testament takes up the same call over the last Babylon: "Come out of her, my people, that ye be not partakers of her sins" (Revelation 18:4). God's redeemed are called to separation from the world's system.

Explanation

God reveals Himself tenderly as "thy Redeemer, the Holy One of Israel... which teacheth thee to profit, which leadeth thee by the way that thou shouldest go." He is not only Saviour but Teacher and Guide, wanting only their good. Then comes one of the most poignant verses in the book, a divine lament: "O that thou hadst hearkened to my commandments! then had thy peace been as a river, and thy righteousness as the waves of the sea." God grieves the flowing peace and fruitfulness His people forfeited by disobedience. Yet grace prevails, and He sounds the great summons: "Go ye forth of Babylon, flee ye from the Chaldeans, with a voice of singing... say ye, The LORD hath redeemed his servant Jacob." Redemption calls for a joyful exodus. And He promises provision for the journey home, as in the first exodus: "he caused the waters to flow out of the rock for them." The chapter ends with a solemn refrain: "There is no peace, saith the LORD, unto the wicked." Peace as a river is God's gift to the obedient; the wicked, who will not leave their Babylon, have none.

Gospel Focus

Three gospel treasures close this chapter. First, God as Teacher: "I am the LORD thy God which teacheth thee to profit, which leadeth thee by the way that thou shouldest go." He does not save us and leave us to find our own way; He teaches and leads us for our good. Second, the ache of forfeited peace: "O that thou hadst hearkened... then had thy peace been as a river." God actually grieves over the peace we miss through disobedience. His commandments are not arbitrary burdens; they are the path to a river of peace, and to reject them is to reject our own good. Obedience is where the peace flows. Third, the call out of Babylon: "Go ye forth of Babylon... The LORD hath redeemed his servant Jacob." The redeemed are called to leave the place of bondage, and the New Testament repeats it over the last Babylon, "Come out of her, my people" (Revelation 18:4). To be redeemed is to be called out. And the water from the rock that provisions the journey is, Paul tells us, Christ Himself, "that Rock was Christ" (1 Corinthians 10:4). But the chapter ends with a warning that cannot be softened: "There is no peace... unto the wicked." Peace as a river is for those who hearken and come out; there is none for those who cling to their Babylon. Hear His voice, leave the far country, drink from the Rock, and let your peace flow like a river.

Chapter 48 in Review

Isaiah 48 closes the Babylon section with God's honest rebuke and His stubborn mercy. He confronts a people who bear His name "but not in truth," whose neck is "an iron sinew," and who were "a transgressor from the womb." He reminds them He foretold everything so they could not credit their idols. Then He reveals why He spares such a people: not for their sake but His own, "For my name's sake will I defer mine anger... For mine own sake, even for mine own sake, will I do it," refining them "in the furnace of affliction" and refusing to give His glory to another. He calls them to hear the one who is "the first and the last," and in verse 16 the eternal God speaks as the Sent One, "the Lord GOD, and his Spirit, hath sent me," the voice of the coming Servant-Messiah. And He ends as Redeemer and Teacher, grieving the peace they forfeited, "O that thou hadst hearkened... then had thy peace been as a river," and sounding the great call, "Go ye forth of Babylon."

For the Apostolic reader this chapter is full of grace and of Christ. God loves and saves a people He fully knows to be stubborn and treacherous, "while we were yet sinners", and He does it "for mine own sake," so that our salvation rests securely on His glory, not our worth. The furnace of affliction is His refining love, not His rejection. Verse 16, where the first-and-last God speaks as One sent by God and His Spirit, opens onto the mystery of redemption: the one God come in flesh as the anointed Servant, the very words Jesus claimed of Himself in Isaiah 61. And the call "Go ye forth of Babylon," echoed in Revelation's "Come out of her, my people," is the summons to every redeemed soul to leave the world's bondage and follow the Redeemer, drinking from the Rock that is Christ. Hear Him in truth, let the furnace refine you, come out of Babylon with a song, and your peace will flow like a river, for there is no peace for those who stay.

Key Takeaways
  • It is possible to bear God's name "but not in truth"; God wants reality, not mere religious words (48:1; Matthew 15:8).
  • God loves and saves His people knowing the worst about them, "a transgressor from the womb" (48:8; Romans 5:8).
  • God saves "for mine own sake," grounding our security in His glory, and refines us "in the furnace of affliction" (48:9-11; 1 Peter 1:7).
  • In verse 16 the first-and-last God speaks as the Sent One, "the Lord GOD, and his Spirit, hath sent me", the coming Servant-Messiah (48:16; Isaiah 61:1; Luke 4:18).
  • Obedience is the path to "peace... as a river," and the redeemed are called to "Go ye forth of Babylon" (48:18, 20; Revelation 18:4; 1 Corinthians 10:4).

Questions for Reflection

  • Do you bear God's name "in truth," or is there a gap between your words about God and your heart?
  • How does it free you to know God saves "for mine own sake," so your standing rests on His glory, not your worth?
  • Is there a "furnace of affliction" in your life that God may be using to refine rather than reject you?
  • What "Babylon" is God calling you to come out of, and what river of peace might be waiting on the other side of obedience?

References & Sources

Scripture is quoted from the King James Version (KJV). The Hebrew terms are standard and can be checked in any Hebrew lexicon. "I am the first, I also am the last" (verse 12) is claimed by the risen Jesus in Revelation 1:17. Verse 16, "the Lord GOD, and his Spirit, hath sent me," is widely read as the voice of the Servant-Messiah, and parallels Isaiah 61:1, which Jesus applied to Himself (Luke 4:18-21). "Go ye forth of Babylon" (verse 20) is echoed over the final Babylon in Revelation 18:4; the water from the rock (verse 21) recalls the exodus (Exodus 17) and is identified with Christ in 1 Corinthians 10:4. "There is no peace... unto the wicked" (verse 22) recurs in Isaiah 57:21. 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. The stubborn people God foreknew and loved: Isaiah 48:1-8; Matthew 15:8; Romans 5:8.
  2. Grace for God's name's sake; the furnace of affliction: Isaiah 48:9-11; 1 Peter 1:7; Ephesians 1:6.
  3. The first and last God, and the Servant sent by His Spirit: Isaiah 48:12-16; Revelation 1:17; Isaiah 61:1; Luke 4:18.
  4. The Teacher-Redeemer, forfeited peace, and the call out of Babylon: Isaiah 48:17-22; Revelation 18:4; 1 Corinthians 10:4; Isaiah 57:21.
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