Ezekiel 38:15-16

15and come from your place, from the remote parts of the north, you and many peoples with you, all of them riding on horses, a great company and a vast army.

16You will advance against my people Israel like a cloud covering the earth. In the latter days I will bring you against my land so that the nations may acknowledge me, when before their eyes I magnify myself through you, O Gog.