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" But the Christian life is of such a nature that it is bound daily to the vine, that is, to the Word, and is made drunk with the gifts of the Spirit or the Word. In the second place, it is not only made drunk this way by the Spirit and filled with the confidence which is the most salutary inebriation for the new man; but it is also washed in wine according to the old man. The old scoundrel must still be washed, not with soap and water but by means of the Word, by means of the blood of the Son of God, which is sprinkled among us through the ministry of the Word. For when we teach, we do nothing else than sprinkle and divide the power of the blood of Christ among the people, as has been stated above68 from the Epistle of Peter (1 Peter 1:2). One should not teach Aristotle, nor the decretals of the pope; but the blood of Christ, God’s Son, must be proclaimed to us, in order that He may purge me more and more from day to day until I am perfectly clean, so that I may be able to meet the Savior when He comes. "
― Martin Luther , Lectures on Genesis: Chapters 45-50 (Luther's Works, #8)