2 Samuel 1:12-14

and they mourned, and wept, and fasted until even, for Saul, and for Jonathan his son, and for the people of the LORD, and for the house of Israel; because they were fallen by the sword. And David said unto the young man that told him, Whence art thou? And he answered, I am the son of a stranger, an Amalekite. And David said unto him, How wast thou not afraid to stretch forth thine hand to destroy the LORD's anointed?