2 Samuel 3:20-21

20When Abner, who had twenty men with him, came to David at Hebron, David prepared a feast for him and his men.

21Then Abner said to David, “Let me go at once and assemble all Israel for my lord the king, so that they may make a covenant with you, and that you may rule over all that your heart desires.” So David sent Abner away, and he went in peace.