2 Samuel 12:20-23

20Then David got up from the ground. After he had washed, put on lotions and changed his clothes, he went into the house of the LORD and worshiped. Then he went to his own house, and at his request they served him food, and he ate.

21His attendants asked him, “Why are you acting this way? While the child was alive, you fasted and wept, but now that the child is dead, you get up and eat!” 22He answered, “While the child was still alive, I fasted and wept. I thought, ‘Who knows? The LORD may be gracious to me and let the child live.’

23But now that he is dead, why should I go on fasting? Can I bring him back again? I will go to him, but he will not return to me.”