Ezekiel 38:14-16

14Therefore prophesy, son of man, and tell Gog that this is what the Lord GOD says: On that day when My people Israel are dwelling securely, will you not take notice of this?1 15And you will come from your place out of the far north—you and many peoples with you, all riding horses—a mighty horde, a huge army. 16You will advance against My people Israel like a cloud covering the land. It will happen in the latter days, O Gog, that I will bring you against My land, so that the nations may know Me when I show Myself holy in you before their eyes.