1 Samuel 18:3
Jonathan made a covenant with David because he loved him as he loved himself.
1 Samuel 20:8-17
Now, show gracious kindness to your servant because you have entered into a sacred covenant with your servant. If there is iniquity in me, then kill me yourself why should you bring me to your father?"
1 Samuel 20:42
Jonathan told David, "Go in peace since both of us swore in the name of the LORD: "May the LORD be between me and you, and between my descendants and your descendants forever.'" Then David got up and left, while Jonathan went to the city.
1 Samuel 23:18
The two of them made a covenant in the LORD's presence. David remained at Horesh while Jonathan went home.
2 Samuel 9:1-3
Later on, David asked, "Is there anyone left alive from Saul's household to whom I can show gracious love in memory of Jonathan?"
2 Samuel 21:7
So the king answered, "I will give them." The king exempted Mephibosheth, the son of Saul's son Jonathan, because of the promise to the LORD that existed between David and Saul's son Jonathan.