2 Samuel 12:16, 22
2 Samuel 12:16 AMP
David therefore appealed to God for the child [to be healed]; and David fasted and went in and lay all night on the ground.
2 Samuel 12:22 AMP
David said, “While the child was still alive, I fasted and wept; for I thought, ‘Who knows, the LORD may be gracious to me and the child may live.’