And afterward, when David heard it,.... That Joab had sent to fetch Abner back, and that he had stabbed him in the gate of the city, and he was dead; it was some time after it was done that the news of it was brought to David; this circumstance is observed, the more to clear the king from any concern in this affair:

he said; in a public manner, in open court, before all his princes; he called God to witness, and, as Josephus (i) says, stretching out his right hand to God, he cried aloud:

I and my kingdom are guiltless before the Lord for ever from the blood of Abner the son of Ner; he was sensible it would be known that Abner had been with him, and that Joab his general had killed him; and therefore it might be suspected that he had an hand in it, and that it was done by his order, with his privy council; and therefore, to purge him and them from it, he made this public declaration, that neither he nor his council knew anything of it; and that it was not done with their knowledge and consent, and by their order, but through the resentment of a single person; and therefore hoped that no man would impute the shedding of this blood unto them, or that God would punish them for it; and he was the rather led to make this public declaration, because he knew that the death of Abner in this way would be resented by the friends of Saul's family, and be an obstruction to the union of the two kingdoms, which it was known Abner was endeavouring to bring about.

(i) Antiqu. l. 7. c. 1. sect. 6.

When David heard this, he said, "I and my kingdom are innocent before Jehovah for ever of the blood of Abner. Let it turn (חוּל, to twist one's self, to turn or fall, irruit) upon the head of Joab and all his father's house (or so-called family)! Never shall there be wanting (יכּרת אל, let there not be cut off, so that there shall not be, as in Joshua 9:23) in the house of Joab one that hath an issue (vid., Leviticus 15:2), and a leper, and one who leans upon a stick (i.e., a lame person or cripple; פּלך, according to the lxx σκυτάλη, a thick round staff), and who falls by the sword, and who is in want of bread," The meaning is: May God avenge the murder of Abner upon Joab and his family, by punishing them continually with terrible diseases, violent death, and poverty. To make the reason for this fearful curse perfectly clear, the historian observes in 2 Samuel 3:30, that Joab and his brother Abishai had murdered Abner, "because he had slain their brother Asahel at Gibeon in the battle" (2 Samuel 2:23). This act of Joab, in which Abishai must have been in some way concerned, was a treacherous act of assassination, which could not even be defended as blood-revenge, since Abner had slain Asahel in battle after repeated warnings, and only for the purpose of saving his own life. The principal motive for Joab's act was the most contemptible jealousy, or the fear lest Abner's reconciliation to David should diminish his own influence with the king, as was the case again at a later period with the murder of Amasa (2 Samuel 20:10).

And afterward when David heard it, he said, I and my kingdom are {k} guiltless before the LORD for ever from the blood of Abner the son of Ner:

(k) the Lord knows that I did not consent to his death.

blood: Heb. bloods

3:22-39 Judgments are prepared for such scorners as Abner; but Joab, in what he did, acted wickedly. David laid Abner's murder deeply to heart, and in many ways expressed his detestation of it. The guilt of blood brings a curse upon families: if men do not avenge it, God will. It is a sad thing to die like a fool, as they do that any way shorten their own days, and those who make no provision for another world. Who would be fond of power, when a man may have the name of it, and must be accountable for it, yet is hampered in the use of it? David ought to have done his duty, and then trusted God with the issue. Carnal policy spared Joab. The Son of David may long delay, but never fails to punish impenitent sinners. He who now reigns upon the throne of David, has a kingdom of a nobler kind. Whatever He doeth, is noticed by all his willing people, and is pleasing to them.