King Hezekiah and the prophet Isaiah son of Amoz prayed about this and cried out to heaven.

In those days Hezekiah was stricken with a terminal illness. ¹  He prayed to the Lord, who answered him and gave him a sign confirming that he would be healed. ² 

When he prayed to the Lord, ¹  the Lord ²  responded to him ³  and answered favorably ⁴  his cry for mercy. The Lord ⁵  brought him back to Jerusalem to his kingdom. Then Manasseh realized that the Lord is the true God.