Yes, would to God that I could persuade the rich and the mighty that they would permit the whole Bible to be painted on houses, on the inside and the outside, so that all can see it. That would be a Christian work... If it is not a sin but good to have the image of Christ in my heart, why should it be a sin to have it in my eyes? This is especially true since the heart is more important than the eyes, and should be less stained by sin because it is the true abode and dwelling place of God.
Martin LutherWe can mention only one point (which experience confirms), namely, that next to the Word of God, music deserves the highest praise. No greater commendation than this can be found — at least not by us. After all, the gift of language combined with the gift of song was only given to man to let him know that he should praise God with both word and music, namely, by proclaiming [the Word of God] through music.
Martin Luther