Bnei Noah

[Jason]

If G-d would ask me to dance on one leg and singing the national anthem of Lithuania backwards, I would think "Ok, that's really strange, but if you want me to do that, I will do it for you, because I like you very much and I trust you, that this strange thing is really necessary."

Would you do anything that anyone told you that God said to do? How would you know for sure that it was God that told you to do what you've been told to do? Different religions claim that God said to do different things. Why not just do what can be determined to be the right course of action through moral argumentation?