When Saul saw David go forth against the Philistine, he said to Abner, the captain of the host, Abner, whose son is this youth? Abner said, As your soul lives, O king, I can't tell.
We remember too that a great son of David arose who defeated another Goliath in His day, namely, Jesus Christ. While Satan is not yet dead, Jesus Christ has felled him. He has won a great victory over this enemy who was behind Goliath and is behind all the enemies of God and His people.