1 Samuel 20:13

20:13 But if my father intends to do you harm, may the Lord do all this and more to Jonathan, if I don’t let you know and send word to you so you can go safely on your way. May the Lord be with you, as he was with my father.

1 Samuel 20:17

20:17 Jonathan once again took an oath with David, because he loved him. In fact Jonathan loved him as much as he did his own life.

1 Samuel 20:42

20:42 Jonathan said to David, “Go in peace, for the two of us have sworn together in the name of the Lord saying, ‘The Lord will be between me and you and between my descendants and your descendants forever.’”

(21:1)

Then David got up and left, while Jonathan went back to the city.