2 Samuel 1:5-10

5And David said unto the young man that told him, How knowest thou that Saul and Jonathan his son be dead?

6And the young man that told him said, As I happened by chance upon mount Gilboa, behold, Saul leaned upon his spear; and, lo, the chariots and the horsemen followed hard after him.

7And when he looked behind him, he saw me, and called unto me. And I answered, Here am I.

8And he said unto me, Who art thou? And I answered him, I am an Amalekite.

9And he said unto me, Stand, I pray thee, beside me, and slay me, for anguish hath taken hold of me; because my life is yet whole in me.

10So I stood beside him, and slew him, because I was sure that he could not live after that he was fallen: and I took the crown that was upon his head, and the bracelet that was on his arm, and have brought them hither unto my lord.