Then Saul said to David, Blessed be thou, my son David. Thou shall both do mightily, and shall surely prevail. So David went his way, and Saul returned to his place.
Now therefore swear to me here by God that thou will not deal falsely with me, nor with my son, nor with my son's son. But according to the kindness that I have done to thee, thou shall do to me, and to the land in which thou have
let seven men of his sons be delivered to us, and we will hang them up to LORD in Gibeah of Saul, the chosen of LORD. And the king said, I will give them.
But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of LORD's oath that was between them, between David and Jonathan the son of Saul.