2 Samuel 3:20-21

3:20 So Abner came to David to Hebron, and twenty men with him. And David made Abner and the men that [were] with him a feast. 3:21 And Abner said unto David, I will arise and go, and will gather all Israel unto my lord the king, that they may make a league with thee, and that thou mayest reign over all that thine heart desireth. And David sent Abner away; and he went in peace.