2 Samuel 12:20-23

20Then David arose from the earth, and washed, and anointed himself, and changed his apparel, and came into the house of Yhwh, and worshipped: then he came to his own house; and when he required, they set bread before him, and he did eat.

21Then said his servants unto him, What thing is this that thou hast done? thou didst fast and weep for the child, while it was alive; but when the child was dead, thou didst rise and eat bread.

22And he said, While the child was yet alive, I fasted and wept: for I said, Who can tell whether Yhwh will be gracious to me, that the child may live?

23But now he is dead, wherefore should I fast? can I bring him back again? I shall go to him, but he shall not return to me.