So Saul died for his trespass which he committed against Yahweh, because of the word of Yahweh, which he didn't keep; and also because he asked counsel of one who had a familiar spirit, to inquire [thereby],
one was, which he committed against the Lord, even against the word of the Lord, which he kept not; both in not staying for Samuel the time appointed, and by sparing the Amalekites whom he was bid to destroy, 1 Samuel 13:13