1 Samuel 15:26

15:26 Samuel said to Saul, “I will not go back with you, for you have rejected the word of the Lord, and the Lord has rejected you from being king over Israel!”

1 Samuel 28:2

28:2 David replied to Achish, “That being the case, you will come to know what your servant can do!” Achish said to David, “Then I will make you my bodyguard from now on.”