Am I following this correctly? Are you saying that because Bob dropped the "o" in God he's trying to be inclusive to Jews? That makes zero sense to me. The Jewish God and Christian God are the same God and he has shown nothing but utter disdain and open contempt for the Christian God. He went to a Catholic school. He knows this.
It's been awhile since I've delved into Revelations so I'm a little shaky at it. I am not aware of Leviathan or Behemoth appearing in Revelation. There's The Beast and the Harlot but that's supposed to represent the Anit-Christ and Babylon (which is supposed to be a representation of the world power in the end times). Any mention of beasts, other than those sicked on people, is supposed to represent the Devil. There's the seven year tribulation where, if you believe in the rapture, all of the unbelievers will have to deal the seven scrolls, trumpets, and seals and all that comes with it. At the end of the seven years, Christ comes back, casts down the anti-Christ, all who took the mark, and the unrepentant and sets up his thousand year reign.
Is what Bob saying unbiblical? From the Christian side I say yes. From the Jewish side, all I know about the Torah is what's already in the Old Testament and I know nothing about any of their other books of law or teachings but I'ma gonna place a healthy bet on yes. Maybe he's thinking of the teachings of the Mountain Jews?