Isaiah 38:20

The Lord was ready to save me, to give him deliverance from the evil which beset him; therefore we will sing my songs to the stringed instruments, with their accompaniment, all the days of our life in the house of the Lord, the hymn probably being used for public worship at stated times, especially on the anniversary of Hezekiah's recovery. To tarry in the house of the Lord and to bring him the sacrifices of our lips and hands is the only proper way of showing our thankfulness for favors received from him.