1 Samuel 24:20

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 hast done this day.

And now, behold, I know well that thou shalt surely be king, and that the kingdom of Israel shall be established in thine hand.

Now, behold, I know that you will surely be king, and that the kingdom of Israel will be established in your hand.

For who shall finde his enemie, and let him depart free? wherefore the Lord render thee good for that thou hast done vnto me this day.