18 And the two of them cut a covenant before Jehovah. And David stayed in the forest, and Jonathan went to his house.
1 Samuel 23:18 Cross References - MKJV
1 Samuel 18:3
3 And Jonathan and David cut a covenant, because he loved him as his own soul.
1 Samuel 20:12-17
12 And Jonathan said to David, By Jehovah, the God of Israel, when I search my father about this time tomorrow or the third day, behold, if there is good toward David, then shall I not send to you and reveal it in your ear?
13 So may Jehovah do to Jonathan and more if it seem good to my father to do you evil, then I will reveal it in your ear and send you away, and you may go in peace. And may Jehovah be with you, as He was with my father.
14 And you shall not only show me the kindness of Jehovah while I still live, so that I do not die,
15 but you shall not cut off your kindness from my house forever, no, not when Jehovah has cut off the enemies of David, every one, from the face of the earth.
16 So Jonathan covenanted with the house of David, saying, Let Jehovah even require it at the hand of David's enemies.
17 And Jonathan caused David to swear again, because he loved him. For he loved him as he loved his own soul.
1 Samuel 20:42
42 And Jonathan said to David, Go in peace because we have both sworn in the name of Jehovah, saying, The Lord shall be between me and you, and between my seed and your seed, forever. And he rose and went away. And Jonathan went into the city.
2 Samuel 9:1
1 And David said, Is there still any that is left from the house of Saul, that I may show him kindness for Jonathan's sake?
2 Samuel 21:7
7 But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of Jehovah's oath that was between them, between David and Jonathan the son of Saul.