David therefore pleaded with God for the child, and David fasted and went in and lay all night on the ground.
2 Samuel 12:16
Surrounding context
12:15 Then Nathan departed to his house. And the LORD struck the child that Uriah's wife bore to David, and it became ill.
12:16 David therefore pleaded with God for the child, and David fasted and went in and lay all night on the ground.
12:17 So the elders of his house arose and went to him, to raise him up from the ground. But he would not, nor did he eat food with them.