1 Samuel 17:54 in the King James Version
And David took the head of the Philistine, and brought it to Jerusalem; but he put his armour in his tent.
Context
53 The children of Israel returned from chasing after the Philistines, and they plundered their camp.
54 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 go out against the Philistine, he said to Abner, the captain of the army, “Abner, whose son is this youth?” Abner said, “As your soul lives, O king, I can’t tell.”