And when Abner was returned to Hebron, Joab took him aside in the gate to speak with him quietly, and smote him there under the fifth rib, that he died, for the blood of Asahel his brother.

And when Abner was returned to Hebron, Joab took him aside to the middle of the gate, to speak to him treacherously: and he stabbed him there in the groin, and he died, in revenge of the blood of Asael his brother.

And when Abner was returned to Hebron, Joab took him aside in the gate to speak with him secretly, and smote him there in the belly, that he died, for the blood of Asahel his brother.

And when Abner was returned to Hebron, Joab took him aside into the midst of the gate to speak with him quietly, and smote him there in the belly, that he died, for the blood of Asahel his brother.

And Abner turneth back to Hebron, and Joab turneth him aside unto the midst of the gate to speak with him quietly, and smiteth him there in the fifth rib, and he dieth, for the blood of Asahel his brother.

And when Abner was back in Hebron, Joab took him on one side by the doorway of the town to have a word with him quietly, and there he gave him a wound in the stomach, causing his death in payment for the death of his brother Asahel.

And when Abner was returned to Hebron, Joab took him aside into the midst of the gate to speak with him quietly, and smote him there in the groin, that he died, for the blood of Asahel his brother.

When Abner was returned to Hebron, Joab took him aside into the midst of the gate to speak with him quietly, and struck him there in the abdomen, so that he died, for the blood of Asahel his brother.

And when Abner had returned to Hebron, Joab took him alone to the middle of the gate, so that he might speak to him, but with deceit. And there, he stabbed him in the groin, and he died, in revenge for the blood of Asahel, his brother.

And smote him there - Joab feared that, after having rendered such essential services to David, Abner would be made captain of the host: he therefore determined to prevent it by murdering the man, under pretense of avenging the death of his brother Asahel.
The murder, however, was one of the most unprovoked and wicked: and such was the power and influence of this nefarious general, that the king dared not to bring him to justice for his crime. In the same way he murdered Amasa, a little time afterwards. See 2-Samuel 20:10. Joab was a cool-blooded, finished murderer. "Treason and murder ever keep together, like two yoke-devils."

And when Abner was returned to Hebron,.... Alone, and not the twenty men with him; not to David's court, but just to the city, to the gate of it:
Joab took him aside in the gate: where he was waiting for him, and met him; this was a public place, where people were continually passing and repassing, and where courts of judicature used to be held; wherefore Abner might think himself safe here with Joab, and have no suspicion at all of his design, and shows how fearless Joab was of God or men:
to speak with him quietly; peaceably, in a friendly manner, as all his gestures towards him showed; so that Abner made no difficulty of turning aside with him, supposing he had something to communicate to him from the king, which he had forgot:
and smote him under the fifth rib, that he died; in the same place that Abner had smote his brother, of which see 2-Samuel 2:23; and this he did:
for the blood of Asahel his brother; for Abner's shedding his brother's blood; but this was not the only reason, and perhaps not the chief; but, as Josephus (h) observes, because he was fearful if Abner was received into the friendship of the king, he would be preferred unto him, and take his place as general of the army, as being an older and more experienced officer; so Procopius Gazaeus, and Theodoret.
(h) Antiqu. l. 7. c. 1. sect. 5.

When he came back, Joab "took him aside into the middle of the gate, to talk with him in the stillness," i.e., in private, and there thrust him through the body, so that he died "for the blood of Asahel his brother," i.e., for having put Asahel to death (2-Samuel 2:23).