This is that mystery which is rich in divine grace unto sinners: wherein by a wonderful exchange, our sins are no longer ours but Christ's; and the righteousness of Christ is not Christ's but ours. He has emptied himself of his righteousness that he might clothe us in it, and fill us with it: and he has taken our evils upon himself that he might deliver us from them.
Martin LutherReason must be deluded, blinded, and destroyed. Faith must trample underfoot all reason, sense, and understanding, and whatever it sees must be put out of sight and ... know nothing but the word of God.
Martin LutherThe certain mark by which a Christian community can be recognized is the preaching of the gospel in its purity.
Martin Luther