He's afraid of getting stoned for his/her lifestyle. It's ok to sodomize because it doesn't hurt anyone.It is unlawful to make a sacrifice anywhere except the temple in jerusalem. When it is rebuilt, sacrifices will resume.
Like all gnostics, they think they have the secret decoder ring, intimate details from God that has been shared with them, etc. Their universe consists of multiple gods much like the pagans of old.
Reality for them is no reality. It is all metaphor.