1 Samuel 20:15
And let not your mercy ever be cut off from my family, even when the Lord has sent destruction on all David's haters, cutting them off from the face of the earth.
2 Samuel 21:7
But the king did not give up Mephibosheth, the son of Saul's son Jonathan, because of the Lord's oath made between David and Jonathan, the son of Saul.
1 Samuel 24:21
So give me your oath by the Lord, that you will not put an end to my seed after me or let my name be cut off from my father's family.
2 Samuel 9:1-7
And David said, Is there still anyone of Saul's family living, so that I may be a friend to him, because of Jonathan?