Gogg and Megogg are mentioned in the Bible as early as Genesis. We see in Ezekiel that after the resurrection of the Valley of Dry Bones, that there will be a Gogg and Megogg judged by God as he pours out his wrath. Again, that's after the resurrection of the Saints. And then at the end of the millennium, there's another judgment of Gogg and Megogg called Armageddon. However, in modern Judaism, they are looking for a prophecy to be fulfilled by their next Messiah. The Bible calls him the Antichrist, and this prophecy will be that a Megogg will come against Jerusalem and that the Messiah will defend them, and of course he will also build his third temple. This is the abomination of desolation and the Antichrist, the mark of the beast, all of these events are tied together and will go against the God of the Bible.