2 Samuel 21:7 References

7 But the king spared aMephibosheth, the son of Jonathan the son of Saul, bbecause of the oath of the Lord which was between them, between David and Saul's son Jonathan.

b 1 Samuel 18:3, 1 Samuel 20:12-17, 1 Samuel 23:18, 2 Samuel 9:1-7

1 Samuel 18

3 Then aJonathan made a covenant with David because he loved him as himself.

1 Samuel 20

12 Then Jonathan said to David, "The Lord, the God of Israel, be witness! When I have sounded out my father about this time tomorrow, or the third day, behold, if there is good feeling toward David, shall I not then send to you and make it known to you?
13 "If it please my father to do you harm, amay the Lord do so to Jonathan and more also, if I do not make it known to you and send you away, that you may go in safety. And bmay the Lord be with you as He has been with my father.
14 "If I am still alive, will you not show me the lovingkindness of the Lord, that I may not die?
15 "aYou shall not cut off your lovingkindness from my house forever, not even when the Lord cuts off every one of the enemies of David from the face of the earth."
16 So Jonathan made a covenant with the house of David, saying, "aMay the Lord require it at the hands of David's enemies."
17 Jonathan made David vow again because of his love for him, because ahe loved him as he loved his own life.

1 Samuel 23

18 So athe two of them made a covenant before the Lord; and David stayed at Horesh while Jonathan went to his house.

2 Samuel 9

1 Then David said, "Is there yet anyone left of the house of Saul, athat I may show him kindness for Jonathan's sake?"
2 Now there was a servant of the house of Saul whose name was Ziba, and they called him to David; and the king said to him, "Are you aZiba?" And he said, "I am your servant."
3 The king said, "Is there not yet anyone of the house of Saul to whom I may show the akindness of God?" And Ziba said to the king, "bThere is still a son of Jonathan who is crippled in both feet."
4 So the king said to him, "Where is he?" And Ziba said to the king, "Behold, he is ain the house of Machir the son of Ammiel in Lo-debar."
5 Then King David sent and brought him from the house of Machir the son of Ammiel, from Lo-debar.
6 aMephibosheth, the son of Jonathan the son of Saul, came to David and bfell on his face and prostrated himself. And David said, "Mephibosheth." And he said, "Here is your servant!"
7 David said to him, "Do not fear, for aI will surely show kindness to you for the sake of your father Jonathan, and bwill restore to you all the land of your grandfather Saul; and cyou shall eat at my table regularly."

Other references for 2 Samuel 21:7

a 2 Samuel 4:4, 2 Samuel 9:10