Kish the father of Saul and Ner the father of Abner were sons of Abiel.
When Saul saw David go out against the Philistine, he said to Abner, the captain of the host, Abner, whose son is this youth? And Abner said, As your soul lives, O king, I cannot tell.
When David returned from killing Goliath the Philistine, Abner brought him before Saul with the head of the Philistine in his hand.
David arose and came to the place where Saul had encamped, and saw where Saul lay with Abner son of Ner, commander of his army; and Saul was lying in the encampment, with the army encamped around him.
So David and Abishai went to the army by night, and there Saul lay sleeping within the encampment with his spear stuck in the ground at his head; and Abner and the army lay round about him.
David called to the army and Abner son of Ner, Will you answer, Abner? Abner replied, Who are you, calling [and disturbing] the king?
David said to Abner, Are you not a valiant man? Who is like you in Israel? Why then have you not guarded your lord the king? For one of the people came in [to your camp] to destroy the king your lord.
And Abner son of Ner and the servants of Ish-bosheth son of Saul went out from Mahanaim to Gibeon.
And Abner said to Joab, Let the young men now arise and have a contest before us. And Joab said, Let them arise.
A very fierce battle followed, and Abner and the men of Israel were beaten before the servants of David.