Gotta love Urbanus Rhegius. He's just the sort of person I'd love to have for my own pastor. He wrote a great little book on preaching the Reformation in which he chews up and spits out the blockheaded attempts of some preachers in preaching totally inaccurately about various subjects in the Church. One such subject he goes after is "ceremonies." He writes:
"On this basis we discern easily how one should think and speak carefully about ceremonies and festivals. The church militant in the flesh is not able to exist without ceremonies. If they are not plainly against the Word of God, therefore, and observed for the sake of good order without any impious notion of acquiring righteousness through them, they should definitely not be rejected but kept for the sake of peace, lest ordinary people be offended. Changing such ceremonies can produce great turmoil and scandals without end...."
Yup. Same thing we read in AC XV. And boy, don't we see it around us today! Kyrie, eleison.