1 Samuel 20:12-17

12And Jonathan said to David, Jehovah, 1God of Israel, when I sound my father about this time to-morrow, [or] the next day, and behold, there be good toward David, and I then send not to thee, and apprise thee of it,

13Jehovah do so and much more to Jonathan. Should it please my father [to do] thee evil, then I will apprise thee of it, and send thee away, that thou mayest go in peace; and Jehovah be with thee, as he has been with my father.

14And thou shalt not only while yet I live shew me the kindness of Jehovah, that I die not,

15but thou shalt not cut off thy kindness from my house for ever, no, not when Jehovah cuts off the enemies of David, every one from the face of the earth.

16And Jonathan made [a covenant] with the house of David, [saying,] Let Jehovah even require [it] at the hand of David's enemies!

17And Jonathan caused David to swear again, by the love he had for him, for he loved him as he loved his own soul.