New Living Translation
So Joab and his brother Abishai killed Abner because Abner had killed their brother Asahel at the battle of Gibeon.

American Standard Version
So Joab and Abishai his brother slew Abner, because he had killed their brother Asahel at Gibeon in the battle.

Berean Study Bible
(Joab and his brother Abishai murdered Abner because he had killed their brother Asahel in the battle at Gibeon.)

Douay-Rheims Bible
So Joab and Abisai his brother slew Abner, because he had killed their brother Asael at Gabaon in the battle.

English Revised Version
So Joab and Abishai his brother slew Abner, because he had killed their brother Asahel at Gibeon in the battle.

King James Bible
So Joab and Abishai his brother slew Abner, because he had slain their brother Asahel at Gibeon in the battle.

World English Bible
So Joab and Abishai his brother killed Abner, because he had killed their brother Asahel at Gibeon in the battle.

Young's Literal Translation
And Joab and Abishai his brother slew Abner because that he put to death Asahel their brother, in Gibeon, in battle.

2 Samuel 3:30 Additional Translations ...