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Verse-by-Verse Commentary

The Book of Isaiah

Chapter 38: I Have Heard Thy Prayer, I Have Seen Thy Tears

Chapter 38 turns from the deliverance of the city to the sickbed of the king. Hezekiah is 'sick unto death,' and Isaiah brings the hardest of words: 'Set thine house in order: for thou shalt die, and not live.' But Hezekiah turns his face to the wall, prays, and weeps, and God sends Isaiah back with a tender reply, 'I have heard thy prayer, I have seen thy tears: behold, I will add unto thy days fifteen years.' The sun's shadow moves backward as a sign, and out of his recovery Hezekiah writes a psalm that reaches one of the sweetest lines in the Old Testament: 'thou hast cast all my sins behind thy back.'

About This Commentary

This is a verse-by-verse study of Isaiah chapter 38, the account of Hezekiah's sickness and healing, paralleling 2 Kings 20. 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 a God who hears prayer, sees tears, heals, and forgives. Every Scripture quotation is from the King James Version.

Setting the Stage

The Sentence

Sick Unto Death

Hezekiah is told to set his house in order, for he will die; he turns to the wall, prays, and weeps.

The Answer

Fifteen Years Added

God says, "I have heard thy prayer, I have seen thy tears," and adds fifteen years, with the sundial sign.

The Song

Sins Behind Thy Back

Hezekiah writes of his brush with the grave and God's mercy: "thou hast cast all my sins behind thy back."

The Means

A Lump of Figs

God heals through Isaiah's word and a simple plaster of figs, joining His power to ordinary means.

The Answer

I Have Heard Thy Prayer (Isaiah 38:1-8)

Under a sentence of death, Hezekiah turns his face to the wall to pray and weep, and God, moved by his prayer and tears, adds fifteen years to his life and confirms it with a miraculous sign in the heavens.

Isaiah 38:1-8

The Shadow Turned Back

"In those days was Hezekiah sick unto death. And Isaiah the prophet the son of Amoz came unto him, and said unto him, Thus saith the LORD, Set thine house in order: for thou shalt die, and not live. Then Hezekiah turned his face toward the wall, and prayed unto the LORD, And said, Remember now, O LORD, I beseech thee, how I have walked before thee in truth and with a perfect heart, and have done that which is good in thy sight. And Hezekiah wept sore. Then came the word of the LORD to Isaiah, saying, Go, and say to Hezekiah, Thus saith the LORD, the God of David thy father, I have heard thy prayer, I have seen thy tears: behold, I will add unto thy days fifteen years. And I will deliver thee and this city out of the hand of the king of Assyria: and I will defend this city. And this shall be a sign unto thee from the LORD, that the LORD will do this thing that he hath spoken; Behold, I will bring again the shadow of the degrees, which is gone down in the sun dial of Ahaz, ten degrees backward. So the sun returned ten degrees, by which degrees it was gone down."

Word Study

"turned his face toward the wall," el-ha-qir (אֶל־הַקִּיר). A gesture of withdrawing from everyone else to be alone with God. Facing away from attendants and toward the wall, Hezekiah pours out his heart in private, the most personal kind of prayer, unseen by men but seen by God.

"I have seen thy tears," raiti eth-dimatekha (רָאִיתִי אֶת־דִּמְעָתֶךָ). God notices not only the words of the prayer but the tears behind them. "Put thou my tears into thy bottle" (Psalm 56:8); the Lord is moved by the weeping of His people, and no tear shed before Him is ever ignored.

Explanation

At the height of his reign Hezekiah falls "sick unto death," and Isaiah brings a crushing word: "Set thine house in order: for thou shalt die, and not live." Hezekiah's response is to turn "his face toward the wall" and pray, appealing to his sincere walk, "how I have walked before thee in truth and with a perfect heart", and he "wept sore." Before Isaiah has even left the palace grounds, God sends him back with a changed word: "I have heard thy prayer, I have seen thy tears: behold, I will add unto thy days fifteen years." God also renews His promise to defend the city against Assyria. And He gives an astonishing sign to seal it: "I will bring again the shadow of the degrees, which is gone down in the sun dial of Ahaz, ten degrees backward." The shadow on the steps moves backward, time itself seeming to reverse, "so the sun returned ten degrees." The God who holds the sun in His hand gives Hezekiah a sign written across the sky that his prayer has been heard.

Gospel Focus

Two tender truths shine here. First, God hears prayer and sees tears: "I have heard thy prayer, I have seen thy tears." Even a word already spoken by the prophet, "thou shalt die," was answered by earnest prayer. This does not mean we can bend God to our will, but it does mean prayer is never wasted, and God is genuinely moved by the cries and tears of His people. "The effectual fervent prayer of a righteous man availeth much" (James 5:16), and "he putteth my tears into his bottle." When you are at the wall, weeping before God with no one else to see, He sees. Second, God is Lord over time and nature; He turned the very shadow backward. Nothing is beyond Him, not the sun, not the length of your days. Yet a caution whispers through this chapter for the thoughtful reader: Hezekiah begged for more years, and in those added years came both his prideful stumble with the Babylonians (chapter 39) and the birth of Manasseh, Judah's most wicked king. What we plead for is not always pure blessing. It is a reminder to pray as Jesus taught, "not my will, but thine, be done" (Luke 22:42), trusting that the God who hears our tears also knows what is truly best.

The Song

Thou Hast Cast All My Sins Behind Thy Back (Isaiah 38:9-20)

Hezekiah writes a psalm looking back on his brush with death, the terror of the grave, the mercy that met him, and the great discovery that God had cast all his sins behind His back and given him life to praise.

Isaiah 38:9-20

The Living, the Living, He Shall Praise Thee

"The writing of Hezekiah king of Judah, when he had been sick, and was recovered of his sickness: I said in the cutting off of my days, I shall go to the gates of the grave: I am deprived of the residue of my years. I said, I shall not see the LORD, even the LORD, in the land of the living: I shall behold man no more with the inhabitants of the world. Mine age is departed, and is removed from me as a shepherd's tent: I have cut off like a weaver my life: he will cut me off with pining sickness: from day even to night wilt thou make an end of me. I reckoned till morning, that, as a lion, so will he break all my bones: from day even to night wilt thou make an end of me. Like a crane or a swallow, so did I chatter: I did mourn as a dove: mine eyes fail with looking upward: O LORD, I am oppressed; undertake for me. What shall I say? he hath both spoken unto me, and himself hath done it: I shall go softly all my years in the bitterness of my soul. O Lord, by these things men live, and in all these things is the life of my spirit: so wilt thou recover me, and make me to live. Behold, for peace I had great bitterness: but thou hast in love to my soul delivered it from the pit of corruption: for thou hast cast all my sins behind thy back. For the grave cannot praise thee, death can not celebrate thee: they that go down into the pit cannot hope for thy truth. The living, the living, he shall praise thee, as I do this day: the father to the children shall make known thy truth. The LORD was ready to save me: therefore we will sing my songs to the stringed instruments all the days of our life in the house of the LORD."

Word Study

"undertake for me," orveni (עָרְבֵנִי). A word from the world of debt: "be my surety, stand as my guarantee." Oppressed and unable to save himself, Hezekiah asks God to become his guarantor, a cry that finds its full answer in Jesus, "made a surety of a better testament" (Hebrews 7:22).

"cast all my sins behind thy back," hishlakhta... gevekha (הִשְׁלַכְתָּ... גֵּוֶךָ). To throw something behind you is to put it out of sight, to refuse to look at it again. It is the Old Testament's vivid picture of forgiveness, matched by "thou wilt cast all their sins into the depths of the sea" (Micah 7:19).

Explanation

Hezekiah records his ordeal in a psalm. He remembers the despair of facing death: "I said in the cutting off of my days, I shall go to the gates of the grave." He felt his life snipped off "like a weaver" cutting the thread, folded up "as a shepherd's tent." He chattered in pain "like a crane or a swallow" and mourned "as a dove," his eyes failing "with looking upward," until he could only cry, "O LORD, I am oppressed; undertake for me." Then the tone turns to grateful wonder. He sees that his very suffering had a purpose, "by these things men live." He confesses the mercy at the heart of it: "for peace I had great bitterness: but thou hast in love to my soul delivered it from the pit of corruption: for thou hast cast all my sins behind thy back." He reflects, with the limited light of the Old Testament, that "the grave cannot praise thee," and resolves that "the living, the living, he shall praise thee," passing the truth on, "the father to the children shall make known thy truth." And he ends in worship: "The LORD was ready to save me: therefore we will sing my songs... in the house of the LORD."

Gospel Focus

The jewel of Hezekiah's psalm is verse 17: "thou hast in love to my soul delivered it from the pit of corruption: for thou hast cast all my sins behind thy back." He learned that his healing was really about more than his body, it was about forgiveness. To have our sins "cast behind God's back" is to have them put where He will never look at them again, the same mercy the whole Bible celebrates: "as far as the east is from the west, so far hath he removed our transgressions from us" (Psalm 103:12); "thou wilt cast all their sins into the depths of the sea" (Micah 7:19); "their sins and their iniquities will I remember no more" (Hebrews 8:12). This is what Christ accomplished at the cross, taking our sins and carrying them out of sight forever. Notice too Hezekiah's fear that "the grave cannot praise thee." He spoke with the partial light of his day, when the hope beyond death was dim. But the gospel has answered his fear: Jesus "hath abolished death, and hath brought life and immortality to light" (2 Timothy 1:10). The grave is no longer a silence; for those in Christ it is the door to seeing His face. If God had cast Hezekiah's sins behind His back in shadow, how much more has He cast ours into the sea through the blood of His Son, so that "the living, the living" praise Him now, and the redeemed will praise Him forever.

The Means

A Lump of Figs (Isaiah 38:21-22)

A closing note records the simple means God used, a plaster of figs laid on the boil, and Hezekiah's question about the sign, showing how God joins His healing power to ordinary things and to faith that asks.

Isaiah 38:21-22

Lay It for a Plaister Upon the Boil

"For Isaiah had said, Let them take a lump of figs, and lay it for a plaister upon the boil, and he shall recover. Hezekiah also had said, What is the sign that I shall go up to the house of the LORD?"

Word Study

"a lump of figs... for a plaister," develeth teenim (דְּבֶלֶת תְּאֵנִים). A cake of pressed figs used as a poultice, a common folk remedy. God, who could have healed by a bare word, chose to work through an ordinary means, joining His power to a humble, everyday thing.

"go up to the house of the LORD." Hezekiah's deepest desire in recovery was not merely to live but to worship, to go up again to the temple. The sign he asked for pointed to that longing: health restored so that praise could be restored.

Explanation

These two verses fill in details of the healing. Isaiah had directed a practical remedy: "Let them take a lump of figs, and lay it for a plaister upon the boil, and he shall recover." God's miracle did not bypass ordinary means; the promise of healing and the poultice of figs worked together. And Hezekiah "had said, What is the sign that I shall go up to the house of the LORD?", the question answered by the backward-moving shadow of verse 8. Notice what the king longed for most: not power or long life for its own sake, but to "go up to the house of the LORD," to worship again among God's people. His healing was, in his own mind, for the sake of praise.

Gospel Focus

There is quiet wisdom in the lump of figs. The same God who turned back the sun also told them to apply a fig poultice, and there is no contradiction. God often joins His power to ordinary means, the word preached, the bread and cup, the counsel of the wise, the care of a physician, and using the means He provides is not a lack of faith but an act of it. Luke, after all, was "the beloved physician" (Colossians 4:14), and Paul told Timothy to "use a little wine for thy stomach's sake" (1 Timothy 5:23). We trust God for healing and gratefully use the means He gives. And notice the aim of Hezekiah's heart: to "go up to the house of the LORD." When God gives us recovery, more days, a way through, the right response is Hezekiah's, to turn our new strength into worship. He did not want life merely to live; he wanted life to praise. May every mercy God adds to our days, whether by a miracle or a lump of figs, carry us back to the house of the LORD with a song.

Chapter 38 in Review

Isaiah 38 moves from the walls of the city to the bedside of the king. Told he would die, Hezekiah "turned his face toward the wall," prayed, and "wept sore," and God answered with tenderness: "I have heard thy prayer, I have seen thy tears: behold, I will add unto thy days fifteen years," sealing it with the shadow moving backward on the sundial. Out of his recovery Hezekiah wrote a psalm that runs from the terror of the grave to the wonder of mercy, reaching its peak in the discovery that "thou hast in love to my soul delivered it from the pit of corruption: for thou hast cast all my sins behind thy back." He resolved that "the living, the living" would praise God and pass His truth to the children. And a closing note records the humble means of the healing, a plaster of figs, and the king's longing to "go up to the house of the LORD."

For the Apostolic reader this chapter is full of comfort and of gospel. God hears prayer and sees tears; no cry at the wall goes unnoticed. He is Lord over time itself, turning the very sun's shadow back. And most preciously, He forgives, casting sin behind His back, the same mercy that in Christ casts our sins into the depths of the sea, to be remembered no more. Hezekiah's fear that "the grave cannot praise thee" was the honest limit of his day's light, but the One who came after him "hath abolished death, and hath brought life and immortality to light," so that death is now the door to seeing the Lord's face. Use the means God gives, trust the God who hears your tears, and let every added day carry you back to His house with praise, for "the LORD was ready to save me."

Key Takeaways
  • God hears prayer and sees tears: "I have heard thy prayer, I have seen thy tears" (38:5; James 5:16; Psalm 56:8).
  • God is Lord over time and nature; He turned the sundial's shadow backward as a sign (38:8).
  • What we plead for is not always pure blessing; pray "not my will, but thine, be done" (38:5; Luke 22:42).
  • "Thou hast cast all my sins behind thy back" is the gospel of forgiveness, fulfilled in Christ (38:17; Psalm 103:12; Micah 7:19; Hebrews 8:12).
  • Hezekiah's fear of the silent grave is answered by Christ, who "brought life and immortality to light" (38:18-19; 2 Timothy 1:10).

Questions for Reflection

  • When you are at "the wall," alone in trouble, do you truly believe God hears your prayer and sees your tears?
  • How does "thou hast cast all my sins behind thy back" shape the way you think about God's forgiveness of you?
  • Hezekiah's added years brought hard consequences. Can you pray "not my will, but thine," trusting God to give what is truly best?
  • When God adds mercy to your days, do you turn that new strength into worship, longing to "go up to the house of the LORD"?

References & Sources

Scripture is quoted from the King James Version (KJV). This chapter parallels 2 Kings 20:1-11 and is noted in 2 Chronicles 32:24-26. The "sun dial of Ahaz" (verse 8) was a set of steps or a stairway by which the sun's shadow marked the time; the backward movement of the shadow is presented as a miraculous sign. Hezekiah's added fifteen years frame the events of chapter 39; during this period his son Manasseh was born (2 Kings 21:1). Hezekiah's view that "the grave cannot praise thee" reflects the partial revelation of the afterlife before Christ "brought life and immortality to light" (2 Timothy 1:10). 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. Sickness, prayer, tears, and the added years with the sundial sign: Isaiah 38:1-8; James 5:16; Psalm 56:8; Luke 22:42.
  2. Hezekiah's psalm; sins cast behind God's back: Isaiah 38:9-20; Psalm 103:12; Micah 7:19; Hebrews 7:22; 8:12; 2 Timothy 1:10.
  3. The plaster of figs and the longing to worship: Isaiah 38:21-22; Colossians 4:14; 1 Timothy 5:23.
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