'Fasted' in the Bible

After this, the LORD afflicted the child that Uriah's wife had born to David, and the child became very ill. David begged God on behalf of the youngster. He fasted, went inside, and spent the night lying on the ground.

His staff asked him, "What's this about? When the child was alive, you fasted and cried. Now that the child has died, you get up and eat!"

He answered, "When the child was alive, I fasted and cried. I asked myself, "Who knows? Maybe the LORD will show grace to me and the child will live.'