1 Chronicles 12:16-18

16And some of the men of Benjamin and Judah came to the stronghold to David.

17David went out to meet them and said to them, "If you have come to me in friendship to help me, my heart will be joined to you; but if to betray me to my adversaries, although there is no wrong in my hands, then may the God of our fathers see and rebuke you."

18Then the Spirit clothed Amasai, chief of the thirty, and he said, "We are yours, O David, and with you, O son of Jesse! Peace, peace to you, and peace to your helpers! For your God helps you." Then David received them and made them officers of his troops.