Ezekiel 38:15-16

And you will come from your place in the inmost parts of the north, you and a great number of peoples with you, all of them on horseback, a great force and a strong army: And you will come up against my people Israel, like a cloud covering the land; and it will come about, in the last days, that I will make you come against my land, so that the nations may have knowledge of me when I make myself holy in you, O Gog, before their eyes.