1 Samuel 20:8-17

8Therefore thou shalt deal kindly with thy servant; for thou hast brought thy servant into a covenant of the LORD with thee: however, if there is in me iniquity, slay me thyself; for why shouldest thou bring me to thy father?

9And Jonathan said, Far be it from thee: for if I knew certainly that evil is determined by my father to come upon thee, then would not I tell it thee? 10Then said David to Jonathan, Who shall tell me? or what if thy father shall answer thee roughly? 11And Jonathan said to David, Come, and let us go out into the field. And they went out both of them into the field. 12And Jonathan said to David, O LORD God of Israel, when I have sounded my father about to morrow any time, or the third day, and, behold, if there be good toward David, and I then send not to thee, and show it thee;12 13The LORD do so and much more to Jonathan: but if it shall please my father to do thee evil, then I will show it to thee, and send thee away, that thou mayest go in peace: and the LORD be with thee, as he hath been with my father.3 14And thou shalt not only while yet I live show me the kindness of the LORD, that I may not die: 15But also thou shalt not withdraw thy kindness from my house for ever: no, not when the LORD hath cut off the enemies of David every one from the face of the earth. 16So Jonathan made a covenant with the house of David, saying, Let the LORD even require it at the hand of David’s enemies.4 17And Jonathan caused David to swear again, because he loved him: for he loved him as he loved his own soul.5