Isaiah 37:21: God's reply to Hezekiah?
How does Isaiah 37:21 demonstrate God's response to Hezekiah's prayer?

The Setting

Hezekiah faces a terrifying siege by Assyria’s vast army. Humanly speaking, the situation is hopeless, so the king spreads the enemy’s threatening letter before the LORD and prays (Isaiah 37:14–20).


Scripture Focus

“Then Isaiah son of Amoz sent word to Hezekiah, saying, ‘This is what the LORD, the God of Israel, says: Because you have prayed to Me about Sennacherib king of Assyria,’” (Isaiah 37:21).


Immediate Divine Response

• God answers without delay—Isaiah speaks “then,” showing God’s response is direct and timely.

• The answer comes through God’s prophet, underscoring the reliability of His word.

• The Lord explicitly links His forthcoming deliverance to one cause: “Because you have prayed to Me.”


Key Truths Illustrated

• God hears: “The eyes of the LORD are on the righteous and His ears are inclined to their cry” (Psalm 34:15).

• God acts: Prayer moves the hand of the sovereign God who rules nations and kings (Proverbs 21:1).

• Personal involvement: The phrase “to Me” highlights an intimate, relational response rather than a distant decree.


Supporting Scriptures

• Parallel account—“Then Isaiah son of Amoz sent a message to Hezekiah: ‘This is what the LORD, the God of Israel, says: Because you have prayed to Me…’” (2 Kings 19:20).

• Example of collective prayer—“King Hezekiah and the prophet Isaiah son of Amoz cried out in prayer to heaven” (2 Chronicles 32:20).

• Promise of God’s nearness—“Call to Me, and I will answer you and show you great and unsearchable things you do not know” (Jeremiah 33:3).

• New-Testament affirmation—“The prayer of a righteous man has great power to prevail” (James 5:16).


Living It Out Today

• Pray first, not last—Hezekiah sought God before planning a counteroffensive.

• Expect God to answer specifically—He names the threat (“Sennacherib”) and meets it precisely.

• Trust Scripture as God’s sure reply—Isaiah’s word is God’s word; the Bible still speaks with that same authority.

• Remember: circumstances may shout, but one sincere prayer brings the Almighty into the battle.

What is the meaning of Isaiah 37:21?
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