2 Samuel 12:15-17

Then Nathan went home. And the LORD caused the son of David and Bathsheba, Uriah’s widow, to be very sick. David prayed to God for the baby. David fasted and went into his house and stayed there, lying on the ground all night. The elders of David’s family came to him and tried to pull him up from the ground, but he refused to get up or to eat food with them.