2 Samuel 3:24-39 - Joab Assassinates Abner
24 Then Joab went to the king, and said, "What hast thou done? See, Abner came unto thee, why hast thou sent him away, that he should escape quite? 25 Thou mightest know Abner the son of Ner, that he came to flatter with thee, and to know thy conversation and behaviour, and to know all that thou doest." 26 And when Joab was come out from the king, he sent messengers after Abner, which brought him again from the well of Sirah - unwitting to David. 27 And when Abner was come again to Hebron, Joab took him aside in the gate, to speak with him guilefully, and there smote him under the short ribs that he died, for the blood of Asahel his brother.
28 And when it afterward came to David's ear, he said, "I and my kingdom are guiltless before the LORD forever, concerning the blood of Abner the son of Ner. 29 It fall therefore on the head of Joab and on all his father's house: that the house of Joab be never without one or other that hath running issues or without lepers and goers on crutches, and that fall on the sword and that lack bread." 30 And the cause why Joab and Abishai slew Abner was that Abner had slain their brother Asahel at Gibeon in battle.
31 And David said to Joab and to all the people that were with him, "Rent your clothes and put on sackcloth and mourn before Abner." And king David himself followed the bier.
32 And when they had buried Abner in Hebron, the king lifted up his voice and wept over the sepulchre of Abner, and so did all the people. 33 And the king lamented over Abner and said, "Abner died not as a wretch dieth. 34 Thy hands were not manacled nor thy feet brought into fetters: but as men fall before wicked children, so fellest thou." And all the people wept yet more over him.
35 And when all the people came to eat meat with David, while it was yet day, David sware, saying, "So do God to me and so thereto, if I taste bread or ought else till the sun be down." 36 And the people wist it, and it pleased them, as well as all other good things which the king did in the sight of the people. 37 And all the people and all Israel thereto understood that day how that it was not the king's mind to slay Abner the son of Ner.
38 And the king said unto his servants, "Know ye not, how that there is a lord, and that a great, fallen this day in Israel? 39 And I am this day tender, though I be anointed king. And these men the sons of Zeruiah be too strong for me to rule. But the LORD reward the doer of evil, according to his wickedness."