A large number of deaf, crippled and blind people are afflicted solely through the malice of the demon. And one must in no wise doubt that plagues, fevers and every sort of evil come from him.
Martin LutherThe kingdom of God does not consist in talk, but in power, that is, in works and practice. God loves the 'doers of the word' in faith and love, and not the 'mere hearers,' who, like parrots, have learned to utter certain expressions with readiness.
Martin LutherOf all deadly sins, this is the most deadly, namely, that any one should think he is not guilty of a damnable and deadly sin before God.
Martin Luther