2 Kings 20:5 repeats 'I have heard your prayer' to Hezekiah, confirming God's consistent response pattern to his prayers.

2 Kings 20:1 shows a later message from Isaiah to Hezekiah — a death sentence, contrasting with the earlier answered prayer.

2 Chronicles 32:20 describes the same prayer event from Hezekiah and Isaiah, providing the parallel account of this moment.

In 2 Chronicles 32:21, the angel's slaughter is the direct answer to the prayer God heard here.

Isaiah 37:21 is the parallel account of the same event — Isaiah's message from God to Hezekiah about his prayer being heard.

Isaiah 38:5 also records God saying 'I have heard your prayer' to Hezekiah, but for healing from illness, not deliverance from Assyria.

1 John 5:14 states that if we ask according to His will, He hears — exactly what happened with Hezekiah's prayer for deliverance.