2 Samuel 3:30-39
3:30 So Joab and his brother Abishai killed Abner, because he had killed their brother Asahel in Gibeon during the battle.
3:31 David instructed Joab and all the people who were with him, “Tear your clothes! Put on sackcloth! Lament before Abner!” Now King David followed behind the funeral bier.
3:32 So they buried Abner in Hebron. The king cried loudly over Abner’s grave and all the people wept too.
3:33 The king chanted the following lament for Abner:
“Should Abner have died like a fool?
3:34 Your hands were not bound,
and your feet were not put into irons.
You fell the way one falls before criminals.”
All the people wept over him again.
3:35 Then all the people came and encouraged David to eat food while it was still day. But David took an oath saying, “God will punish me severely if I taste bread or anything whatsoever before the sun sets!”
3:36 All the people noticed this and it pleased them. In fact, everything the king did pleased all the people.
3:37 All the people and all Israel realized on that day that the killing of Abner son of Ner was not done at the king’s instigation.
3:38 Then the king said to his servants, “Do you not realize that a great leader has fallen this day in Israel?
3:39 Today I am weak, even though I am anointed as king. These men, the sons of Zeruiah, are too much for me to bear! May the Lord punish appropriately the one who has done this evil thing!”