1 Samuel 24:10-12

10Behold, this day thine eyes have seen how that the Lord had delivered thee to day into mine hand in the cave: and some bade me kill thee: but mine eye spared thee; and I said, I will not put forth mine hand against my lord; for he is the Lord’s anointed.

11Moreover, my father, see, yea, see the skirt of thy robe in my hand: for in that I cut off the skirt of thy robe, and killed thee not, know thou and see that there is neither evil nor transgression in mine hand, and I have not sinned against thee; yet thou huntest my soul to take it.

12The Lord judge between me and thee, and the Lord avenge me of thee: but mine hand shall not be upon thee.