1 Samuel 24:5

And it came to pass afterward, that David's heart smote him,
&c.] His conscience accused him, and he repented of what he had done:

because he had cut off Saul's skirt;
which though less than what his servants put him upon, and he might have thoughts of doing, yet was considered by him as a great indignity to his sovereign, and therefore sat uneasy on his mind.