Peter erred in life and in doctrine. Paul might have dismissed Peter's error as a matter of no consequence. But Paul saw that Peter's error would lead to the damage of the whole Church unless it were corrected. Therefore he withstood Peter to his face. The Church, Peter, the apostles, angels from heaven, are not to be heard unless they teach the genuine Word of God.
Martin LutherOriginal sin is in us like our beard. We are shaved today and look clean; tomorrow our beard has grown again, nor does it cease growing while we remain on earth. In like manner original sin cannot be extirpated from us; it springs up in us as long as we live.
Martin LutherThe Holy Ghost is not a Sceptic, and He has not inscribed in our hearts uncertain opinions, but, rather, affirmations of the strongest sorts.
Martin LutherI would not have preachers torment their hearers, and detain them with long and tedious preaching.
Martin Luther