AKJV(i)
4 And the men of David said to him, Behold the day of which the LORD said to you, Behold, I will deliver your enemy into your hand, that you may do to him as it shall seem good to you. Then David arose, and cut off the skirt of Saul's robe privately.
5 And it came to pass afterward, that David's heart smote him, because he had cut off Saul's skirt.