2 Samuel 3:19 (KJV)

And Abner had communication with the elders of Israel, saying, Ye sought for David in times past to be king over you:

Now then do it: for the Lord hath spoken of David, saying, By the hand of my servant David I will save my people Israel out of the hand of the Philistines, and out of the hand of all their enemies.

And Abner also spake in the ears of Benjamin: and Abner went also to speak in the ears of David in Hebron all that seemed good to Israel, and that seemed good to the whole house of Benjamin.

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.

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.