1 In those days Hezekiah became sick and was at the point of death. And Isaiah the prophet the son of Amoz came to him, and said to him, “Thus says the Lord: Set your house in order, for you shall die, you shall not recover.” 2 Then Hezekiah turned his face to the wall and prayed to the Lord, 3 and said, “Please, O Lord, remember how I have walked before you in faithfulness and with a whole heart, and have done what is good in your sight.” And Hezekiah wept bitterly.

4 Then the word of the Lord came to Isaiah: 5 “Go and say to Hezekiah, Thus says the Lord, the God of David your father: I have heard your prayer; I have seen your tears. Behold, I will add fifteen years to your life. 6 I will deliver you and this city out of the hand of the king of Assyria, and will defend this city.

7 “This shall be the sign to you from the Lord, that the Lord will do this thing that he has promised: 8 Behold, I will make the shadow cast by the declining sun on the dial of Ahaz turn back ten steps.” So the sun turned back on the dial the ten steps by which it had declined. – Isaiah 38:1-8 ESV

A key to understanding chapters 38-39 and their place in the chronology of the book of Isaiah is the first three words of verse one of chapter 38: “In those days…” This is a clear reference to the events surrounding the siege of Jerusalem as described in chapters 36-37. Isaiah is providing additional information that will help shed light on all that took place in those dark days, but he is also prefacing the remaining chapters of his book.

During the height of the Assyrian invasion of Judah, King Hezekiah became deathly ill. We are not told the extent of his condition, but the prophet Isaiah delivered a divine prognosis that was anything but good news.

“This is what the Lord says: ‘Set your affairs in order, for you are going to die. You will not recover from this illness.’” – Isaiah 38:1 NLT

So, along with the pending invasion of the Assyrian forces and the likely fall of Jerusalem, Hezekiah had to deal with the threat of a terminal illness. All of this had to have weighed heavily on Hezekiah’s heart. He must have been confused by this unrelenting wave of bad news. After all, he had been one of the few kings of Judah who had tried to do the right thing, instituting a series of drastic religious reforms in an effort to restore the peoples’ worship of Yahweh.

Hezekiah had ascended to the throne of Judah after the death of King Ahaz, who was the poster-boy for unfaithfulness and apostasy. The book of 2 Chronicles gives a summary of some of his exploits.

The king took the various articles from the Temple of God and broke them into pieces. He shut the doors of the Lord’s Temple so that no one could worship there, and he set up altars to pagan gods in every corner of Jerusalem. He made pagan shrines in all the towns of Judah for offering sacrifices to other gods. In this way, he aroused the anger of the Lord, the God of his ancestors. – 2 Chronicles 28:24-25 NLT

But when Hezekiah took the throne at the age of 25, “He did what was pleasing in the Lord’s sight, just as his ancestor David had done” (2 Chronicles 29:2 NLT). One of the first things he did was to reopen the temple and recommission the Levites so that the sacrifices to Yahweh could begin again. He also revived the celebration of Passover and called the people to worship Yahweh alone. As a result, “they smashed all the sacred pillars, cut down the Asherah poles, and removed the pagan shrines and altars” (2 Chronicles 31:1 NLT). 

Yet, in spite of all his reforms and his efforts to restore the worship of Yahweh in Judah, God sent the Assyrians.

After Hezekiah had faithfully carried out this work, King Sennacherib of Assyria invaded Judah. He laid siege to the fortified towns, giving orders for his army to break through their walls. – 2 Chronicles 32:1 NLT

And to make matters even worse, Hezekiah was told he was going to die. If anyone had the right to ask God, “Why?” it was Hezekiah. But rather than questioning God’s actions or doubting His love, Hezekiah simply asked that his acts of faithfulness be remembered.

“Remember, O Lord, how I have always been faithful to you and have served you single-mindedly, always doing what pleases you.” – Isaiah 38:3 NLT

Hezekiah was not bragging or boasting, but merely expressing his confusion over this latest bit of bad news. Isaiah describes the king as weeping bitterly. He was devastated by all that was happening to him and around him. The nation of Judah was under siege. It was just a matter of time before the Assyrians arrived outside the walls of Jerusalem. And now, he was facing imminent death. It was all more than he could handle. So, he took his hurt, confusion, and despair to God. And his prayer was heard. God gave Isaiah a second message for Hezekiah.

“This is what the Lord, the God of your ancestor David, says: I have heard your prayer and seen your tears. I will add fifteen years to your life, and I will rescue you and this city from the king of Assyria. Yes, I will defend this city.” – Isaiah 38:5-6 NLT

This raises the often-debated question: “Can the prayers of men change the mind of God?” Was God’s prescribed will somehow altered by the prayer of Hezekiah? The text is clear that, as a result of Hezekiah’s prayer, God extended his life by 15 years. So, it would appear that Hezekiah’s death date was postponed because he prayed. But at the heart of the question lies the sovereignty of God. There is also the issue of God’s omniscience. He knows all. There is nothing that escapes His notice or that lies outside His awareness. While there are many occasions recorded in Scripture where it appears that God “changed His mind” because of the prayers of men like Moses, Abraham, David, and others, it is essential that we understand that God’s will is never altered by anyone. In fact, the book of Numbers tells us that God never changes His mind.

God is not a man, so he does not lie.
    He is not human, so he does not change his mind.
Has he ever spoken and failed to act?
    Has he ever promised and not carried it through? – Numbers 23:19 NLT

So, what is going on here? Why did God determine to extend Hezekiah’s life? One of the things we need to always bear in mind is God’s complete and unwavering knowledge of all things. God knew Hezekiah’s heart. He was fully aware of how Hezekiah would respond to the news of his pending death. Hezekiah’s prayer didn’t change the heart of God, it changed the heart of Hezekiah. The king, faced with the news of his terminal illness, unknowingly prayed within the will of God, revealing his desire that his life be extended because he cared for the glory of God and the good of the people of Judah. God, because He is all-knowing, knew exactly how Hezekiah was going to respond and His “decision” to extend the king’s life had been part of His will all along.

God used the announcement of Hezekiah’s death to bring the king to the point of total dependence upon Him. The terminal prognosis was meant to get Hezekiah’s attention, not God’s. It was intended to bring the king to a place of total reliance upon the will of God and to remind the king of his own faithfulness. So much of this is about perspective. We see things from our limited vantage point as human beings. From our earth-bound, time-controlled view, we are incapable of seeing into the future. We don’t know what tomorrow holds. But God does. He knew all along that Hezekiah was going to live an additional 15 years because He knew how Hezekiah was going to respond to the news of his illness. Hezekiah didn’t change the mind of God, but Hezekiah’s mindfulness of God was dramatically altered. God wanted Hezekiah to know and not forget that faithfulness was the key to God’s graciousness. In a time when it could have been easy for Hezekiah to turn away from God and restore the former alters to the false gods, he remained faithful to Yahweh. He did not follow in the footsteps of his predecessor.

Even during this time of trouble, King Ahaz continued to reject the Lord. He offered sacrifices to the gods of Damascus who had defeated him, for he said, “Since these gods helped the kings of Aram, they will help me, too, if I sacrifice to them.” – 2 Chronicles 28:22-23 NLT

In a sense, the news of Hezekiah’s terminal illness had been a test. Not of God, but of Hezekiah. And God knew that Hezekiah would pass the test with flying colors. Hezekiah’s death date did not really change. But his view of God did. And in the remaining verses of this chapter, Hezekiah will reveal the profound impact this situation had on his life and his heart. He was drawn closer to God. His reliance upon and love for God deepened. And this enhanced understanding of God’s love and faithfulness was going to be needed in the days ahead.

One of the more interesting aspects of this story is the proof that God gave Hezekiah to assure that all He had said was true.

“‘And this is the sign from the Lord to prove that he will do as he promised: I will cause the sun’s shadow to move ten steps backward on the sundial of Ahaz!’” So the shadow on the sundial moved backward ten steps. – Isaiah 38:7-8 NLT

We know from the parallel story found in 2 Kings, that Hezekiah had asked God for a sign.

“What shall be the sign that the Lord will heal me?” – 2 Kings 20:8 ESV

This was not necessarily an expression of doubt on Hezekiah’s part, but a request for some form of reassurance on God’s part. The news was almost too good to be true. So, Hezekiah asked God to provide him with a tangible sign that what He had promised would indeed take place. And God graciously and miraculously obliged.

What’s truly interesting is that God used something built by and named after wicked King Ahaz to provide faithful King Hezekiah with proof of His word. God caused the shadow of the sun to reverse itself. In a sense, time reversed itself. We are not told whether the sun itself moved backward in the sky or whether the shadow moved contrary to the position of the sun. In either case, God provided a miracle, a supernatural sign that provided Hezekiah with all the proof he required. And again, the impact of all of this on Hezekiah was profound, resulting in his penning of a poem of praise to God.

English Standard Version (ESV)
The Holy Bible, English Standard Version. ESV® Permanent Text Edition® (2016). Copyright © 2001 by Crossway Bibles, a publishing ministry of Good News Publishers.

New Living Translation (NLT)
Holy Bible, New Living Translation, copyright © 1996, 2004, 2015 by Tyndale House Foundation. Used by permission of Tyndale House Publishers Inc., Carol Stream, Illinois 60188. All rights reserved.

The Message (MSG)
Copyright © 1993, 1994, 1995, 1996, 2000, 2001, 2002 by Eugene H. Peterson