O, this faith is a living, busy, active, powerful thing! It is impossible that it should not be ceaselessly doing that which is good. It does not even ask whether good works should be done; but before the question can be asked, it has done them, and it is constantly engaged in doing them. But he who does not do such works, is a man without faith. He gropes and casts about him to find faith and good works, not knowing what either of them is, and yet prattles and idly multiplies words about faith and good works.
Martin LutherWhen some say that good works are forbidden when we preach faith alone, it is as if I said to a sick man: "If you had health, you would have the use of all your limbs; but without health, the works of all your limbs are nothing"; and he wanted to infer that I had forbidden the works of all his limbs.
Martin LutherThe soul can do without everything except the word of God, without which none at all of its wants are provided for.
Martin Luther