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 ...
Shabbos 67b says "Gad" (גד) was the name of an Amorite idol, and we shouldn't use it. Shouldn't this apply to the name "God" as well? eg. "God forbid"