1 Samuel 26:21 in the World English Bible
Then Saul said, “I have sinned. Return, my son David; for I will no more do you harm, because my life was precious in your eyes today. Behold, I have played the fool, and have erred exceedingly.”
Context
20 Now therefore, let not my blood fall to the earth before the face of the LORD: for the king of Israel is come out to seek a flea, as when one doth hunt a partridge in the mountains.
21 Then said Saul, I have sinned: return, my son David: for I will no more do thee harm, because my soul was precious in thine eyes this day: behold, I have played the fool, and have erred exceedingly.
22 And David answered and said, Behold the king’s spear! and let one of the young men come over and fetch it.