Acts 16:21

21. Customs… not lawful Roman law did by most solemn sanctions decree that to the magistrates it should pertain to forbid all foreign rites, and banish all priestlings, ( sacrificulos,) and prophets or preachers, from the forum, circus, or city; and should abolish every sacrificial institute not established by ancient Roman custom. All who imported new or unrecognised religions, whether in doctrine or ceremony, by which men’s minds were disturbed, should be punished, the nobler by banishment, the humbler by death. Such was the law our apostles were bound to face.