2 Samuel 3:31-35

31Then David said to Joab and to all the people who were with him, “Rend your clothes, gird with sackcloth, and lament before Abner.” King David walked behind the platform.

32When they buried Abner in Hebron, the king lifted up his voice and wept aloud at Abner’s grave, and all the people wept.

33Then the king chanted a lament for Abner and said, “Should Abner die like a senseless fool?

34Your hands were not bound, your feet were never put in fetters. As one falls before the children of iniquity, so did you fall.” Then all the people wept again over him.

35Then all the people came to urge David to eat some food while it was still day, but David vowed saying, “May God do so to me and even more if I taste food or anything else before the sun sets.”