1 Samuel 31:13 And they took their bones, and buried them under a tree at Jabesh, and fasted seven days. MC VC

2 Samuel 12:16 David therefore besought God for the child; and David fasted, and went in, and lay all night upon the earth. MC VC

2 Samuel 12:18 And it came to pass on the seventh day, that the child died. And the servants of David feared to tell him that the child was dead: for they said, Behold, while the child was yet alive, we spake unto him, and he would not hearken unto our voice: how will he then vex himself, if we tell him that the child is dead? MC VC

2 Samuel 12:22 And he said, While the child was yet alive, I fasted and wept: for I said, Who can tell whether God will be gracious to me, that the child may live? MC VC