2 Samuel 1:11-16

11Therefore David took hold of his own clothes and tore them, and so did all the men who were with him.

12And they mourned and wept and fasted until evening for Saul and for Jonathan his son, for the people of the Lord and for the house of Israel, because they had fallen by the sword.

13Then David said to the young man who told him, “Where are you from?” And he answered, “I am the son of an alien, an Amalekite.”

14So David said to him, “How was it you were not afraid to put forth your hand to destroy the Lord’s anointed?”

15Then David called one of the young men and said, “Go near, and execute him!” And he struck him so that he died.

16So David said to him, “Your blood is on your own head, for your own mouth has testified against you, saying, ‘I have killed the Lord’s anointed.’ ”