Hezekiah prayed before the Lord:

Hezekiah turned his face to the wall and prayed to the Lord,

When the Moabites plead with all their might at their high places, ¹  and enter their temples to pray, their prayers will be ineffective! ² 

With the rest of it he makes a god, his idol; he bows down to it and worships it. He prays to it, saying, ‘Rescue me, for you are my god!’

Gather together and come! Approach together, you refugees from the nations! Those who carry wooden idols know nothing, those who pray to a god that cannot deliver.

Isaiah son of Amoz sent this message to Hezekiah: “This is what the Lord God of Israel says: ‘Because you prayed to me concerning King Sennacherib of Assyria, ¹ 

This is what the Lord says: “The profit ¹  of Egypt and the revenue ²  of Ethiopia, along with the Sabeans, those tall men, will be brought to you ³  and become yours. They will walk behind you, coming along in chains. ⁴  They will bow down to you and pray to you: ⁵  ‘Truly God is with ⁶  you; he has no peer; ⁷  there is no other God!’”