- God said, Let there be bliss: and there was bliss.
There's debate; in short, the Tetragrammaton (יהוה, or YHWH) is intentionally unpronounceable for complicated reasons. Really, if you're going to spell out the name of God anyway, one set of vowels is as good as another - or you may as well just say "God", it's not like it means anything.
TL;DR: Yes, there's multiple ways to spell it. (And no, I'm not going to say 'summary'. Because I'm contrarian, that's why.)
What's confusing is how out of character this seems for DanielLC. I'm assigning a non-negligible probability to the hypothesis that ve walked away from a computer without logging out (or something) and this is just a drive-by troll.
It was a spelling error. The fact that there's no "correct" spelling is a coincidence.