1 Samuel 20:13

And David said, “Yahweh, who delivered me from the hand of the lion and from the hand of the bear, He will deliver me from the hand of this Philistine.” And Saul said to David, “Go, and may Yahweh be with you.”

Then Jonathan cut a covenant with David because he loved him as his own soul.

“And I will go out and stand beside my father in the field where you are, and I will speak with my father about you; what I perceive, I will tell you.”

So the two of them cut a covenant before Yahweh; and David stayed at Horesh while Jonathan went to his house.

“May God do so to the enemies of David, and more also, if by morning I leave as much as one male of any who belong to him.”

But the king spared Mephibosheth, the son of Jonathan the son of Saul, because of the oath of Yahweh which was between them, between David and Saul’s son Jonathan.

“As Yahweh has been with my lord the king, so may He be with Solomon, and make his throne greater than the throne of my lord King David!”