Great paired with any outfit to remind us we are both 'saint' and 'sinner'. Every Christian "has a two fold nature," Luther argued in expounding his doctrine of simul iustus et peccator. We are at once body and soul, flesh and spirit, sinner and saint. A saint by faith remains a sinner by nature, Luther insisted, and the paradox of good and evil within the same person remains until death. This is the people of God," the saints who are saved, despite their sin.