Tertullian, Against Marcion 5.9

Meanwhile, the Marcionites will show nothing of this sort—people to whom one must now also declare whose Christ has still not been revealed. My Christ is the one to be expected, because he was proclaimed from the beginning; theirs is not, precisely because he was not. So we put our faith in the coming Christ more confidently than the heretic puts his in just any Christ. First we must examine how certain people back then denied the resurrection of the dead. They did it in exactly the same way as they do now, since the resurrection of the flesh has always been denied. Yet many philosophers, claiming the soul is divine, promise its salvation; and the common crowd, relying on that same presumption, honors the dead in the confidence that their souls survive. But everyone can see that bodies are destroyed—thrown straight into fire, devoured by beasts, or even when buried with the utmost care, eventually erased by time. So if the apostle rebukes those who deny the resurrection of the flesh, he is necessarily defending the very thing they denied: the resurrection of the flesh. That is the answer in brief. The rest is simply overkill.