Then Saul said, "I have sinned. Return, my son David. For I will harm you no more, because my life was precious in your eyes this day. Indeed I have played the fool and erred exceedingly."
1 Samuel 26:21
Surrounding context
26:20 So now, do not let my blood fall to the earth before the face of the LORD. For the king of Israel has come out to seek a flea, as when one hunts a partridge in the mountains."
26:21 Then Saul said, "I have sinned. Return, my son David. For I will harm you no more, because my life was precious in your eyes this day. Indeed I have played the fool and erred exceedingly."
26:22 And David answered and said, "Here is the king's spear. Let one of the young men come over and get it.