'Barefooted' in the Bible

And David is going up in the ascent of the olives, going up and weeping, and he hath the head covered, and he is going barefooted, and all the people who are with him have covered each his head, and have gone up, going up and weeping;

“And if you [wonder and] say in your heart,‘Why have these things happened to me?’It is because of the greatness and nature of your sinThat your skirts have been pulled away [subjecting you to public disgrace]And [like a barefoot slave] your heels have been wounded.