'Unbound' in the Bible

"As for the diseased person who has the infection, his clothes must be torn, the hair of his head must be unbound, he must cover his mustache, and he must call out 'Unclean! Unclean!'

{He answered}, saying, "Look, I see four men unbound walking in the midst of the fire and there is no damage to them, and the appearance of the fourth [man] resembles the son of a god."