This is my advice: If your lord, the margrave and elector, etc., permits the gospel of Jesus Christ to be preached with purity and power and without human additions and the two sacraments of Baptism and the Body and Blood of Jesus Christ to be administered and offered according to their institution…go along in God’s name and carry a silver or gold cross and wear a cope or alb of velvet, silk, or linen. And if one cope or alb is not enough for your lord, the elector, wear three of them…Moreover, if His Grace is not satisfied that you go about singing and ringing bells in procession only once, go about seven times…If your lord, the margrave, desires it, let His Grace leap and dance at the head of the procession with harps, drums, cymbals, and bells…I am fully satisfied, for none of these things (as long as no abuse is connected with them) adds anything to the gospel or detracts from it. Only do not let such things be regarded as necessary for salvation and thus bind the consciences of men…Only what God commands is necessary; the rest is free.
Martin Luther
Letters of Spiritual Counsel