2 Samuel 1:8-10

8 He said to me, 'Who are you?' I answered him, 'I am an Amalekite. '

9 He said to me, 'Please stand beside me, and kill me; for anguish has taken hold of me, because my life is yet whole in me. '

10 So I stood beside him, and killed him, because I was sure that he could not live after that he had fallen. I took the crown that was on his head, and the bracelet that was on his arm, and have brought them here to my lord."