2 Samuel 3:27

3:27 When Abner returned to Hebron, Joab took him aside at the gate as if to speak privately with him. Joab then stabbed him ¹  in the abdomen and killed him, avenging the shed blood of his brother Asahel. ² 

2 Samuel 3:30

3:30 So Joab and his brother Abishai killed Abner, because he had killed their brother Asahel in Gibeon during the battle.

[3:27]  ¹ tn Heb “and he struck him down there [in] the stomach.”

[3:27]  ² tn Heb “and he [i.e., Abner] died on account of the blood of Asahel his [i.e., Joab’s] brother.”