2 Samuel 1:13-15

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? And David called one of the young men, and said, Go near, and fall upon him. And he smote him that he died.