1 Samuel 17:54-56

New King James Version

⁵⁴ And David took the head of the Philistine and brought it to Jerusalem, but he put his armor in his tent.

⁵⁵ When Saul saw David going out against the Philistine, he said to ^(A)Abner, the commander of the army, “Abner, ^(B)whose son is this youth?”

And Abner said, “As your soul lives, O king, I do not know.”

⁵⁶ So the king said, “Inquire whose son this young man is.”