Ezekiel 38:16-17

You will attack my people Israel like a cloud that covers the land. This will happen in the days to come when I bring you against my land. Gog, then the nations will know me when they see me prove how holy I am in what I do through you. “ ‘This is what the Lord GOD says: You are the one about whom I spoke in past days. I spoke through my servants, the prophets of Israel, who prophesied for many years that I would bring you against them.