Thematic Bible: Spirit of, explained

Is not this the fast that I have chosen: to loose the bonds of wickedness, to undo the bands of the yoke, and to let the oppressed go free, and that ye break every yoke? Is it not to deal thy bread to a hungry man, and that thou bring the poor who are cast out to thy house, when thou see a naked man, that thou cover him, and that thou not hide thyself from thine own flesh?