Ezekiel 38:16-17

You will advance against my people Israel like a cloud that covers the land. In days to come, Gog, I will bring you against my land, so that the nations may know me when I am proved holy through you before their eyes. “ ‘This is what the Sovereign LORD says: You are the one I spoke of in former days by my servants the prophets of Israel. At that time they prophesied for years that I would bring you against them.