II SAMUELE 3:30

Così Ioab, e Abisai, suo fratello, uccisero Abner; perciocchè egli avea ammazzato Asael, lor fratello, presso a Gabaon, in battaglia.

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