Eliab his eldest brother heard when he spoke to the men; and Eliab's anger was kindled against David, and he said, Why are you come down? and with whom have you left those few sheep in the wilderness? I know your pride, and the naughtiness of your heart; for you have come down that you might see the battle.
Now when Saul saw David go out against this fellow, he said to his captain Abner, Who is this young fellow? [Who is his dad?] And Abner said, [I don't know,] as thy soul live I can't tell you. And so the king says, Inquire and find out whose son he is. And so as David returned from the slaughter of the Philistine, Abner took him, and brought him before Saul with the head of the Philistine still in his hand ( 1 Samuel 17:55-57 ).