1 Samuel 20:8

20:8 You must be loyal to your servant, for you have made a covenant with your servant in the Lord’s name. If I am guilty, you yourself kill me! Why bother taking me to your father?”

1 Samuel 20:13-17

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. 20:14 While I am still alive, extend to me the loyalty of the Lord, or else I will die! 20:15 Don’t ever cut off your loyalty to my family, not even when the Lord has cut off every one of David’s enemies from the face of the earth 20:16 and called David’s enemies to account.” So Jonathan made a covenant with the house of David. 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 20:30-34

20:30 Saul became angry with Jonathan and said to him, “You stupid traitor! Don’t I realize that to your own disgrace and to the disgrace of your mother’s nakedness you have chosen this son of Jesse? 20:31 For as long as this son of Jesse is alive on the earth, you and your kingdom will not be established. Now, send some men and bring him to me. For he is as good as dead!”

20:32 Jonathan responded to his father Saul, “Why should he be put to death? What has he done?” 20:33 Then Saul threw his spear at Jonathan in order to strike him down. So Jonathan was convinced that his father had decided to kill David. 20:34 Jonathan got up from the table enraged. He did not eat any food on that second day of the new moon, for he was upset that his father had humiliated David.

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.