1 Chronicles 12:16-18

16Others from Benjamin and Judah came to David at the stronghold.

17David went out to meet them and said, “If you have come in peace to help me, we are friends. But if you have come to betray me to my enemies when I am innocent, then may the God of our ancestors see it and punish you.”

18Then the Spirit came upon Amasai, the leader of the Thirty, and he said, “We are yours, David! We are on your side, son of Jesse. Peace and prosperity be with you, and success to all who help you, for your God is the one who helps you.” So David let them join him, and he made them officers over his troops.