Isaiah 38:3-6

38:3 “Please, Lord. Remember how I have served you faithfully and with wholehearted devotion, and how I have carried out your will.” Then Hezekiah wept bitterly.

38:4 The Lord told Isaiah, 38:5 “Go and tell Hezekiah: ‘This is what the Lord God of your ancestor David says: “I have heard your prayer; I have seen your tears. Look, I will add fifteen years to your life, 38:6 and rescue you and this city from the king of Assyria. I will shield this city.”’”