That depends. Can a baker put a sign in their window that says they kill anyone that works on the sabbath? Are they then allowed to do it because they are devout Christians? Can a baker put a sign in their window that says they only bake cakes for people who kill apostates who reject Allah? Are they then allowed to do it because they are devout Muslims? Gee. Silly thought, but may be we should follow the secular laws outlined in our secular constitution. Another silly thought, maybe you can follow whatever religion you want right up until you take any action that is against the law. There is NO free pass for breaking the law. If you don't like gay marriage, don't marry someone of the same gender as yourself.