'Fasted' in the Bible

They lamented and wept and fasted until evening because Saul, his son Jonathan, the Lord's people, and the house of Israel had fallen by the sword.

Then David prayed to God for the child and fasted. He would even go and spend the night lying on the ground.

His servants said to him, "What is this that you have done? While the child was still alive, you fasted and wept. Once the child was dead you got up and ate food!"

He replied, "While the child was still alive, I fasted and wept because I thought, 'Perhaps the Lord will show pity and the child will live.