I have seen a lot of mention about "Hashem's Name" on this website.
I would like to know:
- Is it permissible for a Jew to tell a Gentile what Hashem's Name really is--what I am asking is, say, a Gentile asks a Jew what Hashem's Name is, would it be permissible for the Jew to say it then or would it be uttering it in vain, and hence a sin?
- Is it permissible for a Gentile to utter it.
I would appreciate answers to this question from known Rabbinic traditions and rulings, if possible.