I Samuel 20:9-17

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

These verses reflect the last time David would try to return to Saul’s court. Jonathan reveals that he believe that his father would not hide anything about David from him. However, he assured to David he sound his father out directly on Saul’s true desires about David’s future. After this promise Jonathan and David went out into the field and discuss their future relationship.

These verses reveal Jonathan’s deep convictions of David’s as the future king. Jonathan and David had developed a deep relationship during David’s time in Saul’s court. David was Jonathan’s brother-in-law and had a seat a Saul’s table for the new moon feasts. Here is the verses Jonathan and David made a covenant with each other to show kindness to their respective houses. In II Samuel 9 we see David fulfill promise to Jonathan’s son Mephibosheth.