20
And if any one should find his enemy in distress, and should send him forth in a good way, then the Lord will reward him good, as thou has done this day.
21
And now, behold, I know that thou shalt surely reign, and the kingdom of Israel shall be established in thy hand.
22
Now then swear to me by the Lord, that thou wilt not destroy my seed after me, that thou wilt not blot out my name from the house of my father.
23
So David swore to Saul: and Saul departed to his place, and David and his men went up to the strong-hold of Messera.
The Brenton translation of the Septuagint is in the public domain.