Again, there's no prohibition in the Bible forbidding anyone to sell cake. You've hallucinated it.
And your religious beliefs don't allow you to ignore the law. Yours is nothing more than a religiously based sovereign citizen argument, where you are exempt from any law you don't like.
Again, individual Christians enjoy the 1st Amendment right to exercise their faith. Exercise is an active, not a passive word.
And your exercise of religion doesn't trump civil law. Religion can't be targeted with a particular law. But the religious can be subject to the same laws as everyone else. Public Accommodation laws, taxes, speed limits, etc. If your religious faith allowed you to arbitrarily ignore any law you wished, then you'd have essential anarchy. With any law a mere suggestion.
That's not our system nor has it ever been nor was it ever intended to be.
And that exercise is active and effective 24/7/365. In other words, it can never be disenfranchised by the state or fed or any other entity at any moment in time, including while that person is running a business.
Says you. You're still subject to all the same laws as everyone else. If your religion required say, human sacrifice....too bad, so sad. If it required that you never pay taxes, well, it sucks to be you. If it requires that you be able to keep slaves, do whatever drugs you want, you're out of luck.
Religion does not trump civil law. What you're describing is a theocracy. And it is not ours.
The gay cult interfers with their 1st Amendment right specifically in this way: Jude 1 of Jesus's New Testament forbids Christians from promoting ANY gay culture, while it encourages them to reach out to individual gays making a difference in their life. If they fail, they are damned to an eternity in the Pit of Fire. The terms of this Biblical passage are non-negotiable.
And selling a cake isn't promoting your customer. The very premise of your argument is nonsense. Selling a cake is promoting the cake and your business. There is no biblical prohibition against selling cake. None. You've quite literally invented it because you don't like gay people.
And like all the generally applicable laws that apply to the devout and non-devout alike, your subjective religious beliefs don't make you exempt. You want your religion to trump any law, so you can use your religious beliefs as justification for treating gays and less, for abusing them, for discriminating against them. But your need to treat others as less doesn't grant you immunity from laws.