. He won’t meet his final doom until after the Millennium, but his eternal doom and fate were sealed on the cross.
Gen 3:14-15 So the LORD God said to the serpent, “Because you have done this, “Cursed are you above all the livestock and all the wild animals! You will crawl on your belly and you will eat dust all the days of your life. And I will put enmity between you and the woman, and between your offspring and hers; he will crush your head, and you will strike his heel.