1 Samuel 24:20-22

Common English Bible

²⁰ Now even I know that you will definitely become king, and Israel’s kingdom will flourish in your hands. ²¹ Because of that, make a solemn pledge to me by the Lord that you won’t kill off my descendants after I’m gone and that you won’t destroy my name from my family lineage.”

²² David made a solemn pledge to Saul. Then Saul went back home, but David and his soldiers went up to the fortress.