Isaiah 37:21
Then Isaiah the son of Amoz sent unto Hezekiah, saying, Thus saith the Lord God of Israel, Whereas thou hast prayed to me against Sennacherib king of Assyria:
Cross-reference
Isaiah 38:3–6
Parallel
Isaiah 38:3-6 records another prayer of Hezekiah answered by God—showing a pattern of God's response to his petitions.
Isaiah 65:24
Parallel
Isaiah 65:24 promises God answers before we call—intensifying the immediacy of response seen when God answered Hezekiah.
2 Kings 19:20
Parallel
2 Kings 19:20 is the parallel account of the same divine response to Hezekiah's prayer.
2 Kings 19:21
Parallel
2 Kings 19:21 continues the oracle, describing Zion's derision of Sennacherib—directly parallel to the following verses.
Daniel 9:20–23
Parallel
In Daniel 9:20-23, Gabriel brings Daniel an answer to his prayer, mirroring Isaiah's message to Hezekiah.
2 Chronicles 32:21
Historical context
2 Chronicles 32:21 recounts the same event: the angel killing the Assyrian army, confirming God's answer to Hezekiah's prayer.