Furthermore 1 Cor 11:1-16
Concerning the latter, the several churches that were in the apostles' time had different customs in things that were not essential; and that under one and the same apostle, as circumstances, in different places, made it convenient. And in all things merely indifferent the custom of each place was of sufficient weight to determine prudent and peaceable men. Yet even this cannot overrule a scrupulous conscience, which really doubts whether the thing be indifferent or no. But those who are referred to here by the apostle were contentious, not conscientious, persons.