Lactantius

“ For we have one great and principal struggle to maintain with the flesh, the boundless desires of which press upon the soul, nor allow it to retain dominion, but make it the slave of pleasures and sweet allurements, and visit it with everlasting death. And that we might be able to overcome these, God has opened and displayed to us the way of overcoming the flesh. And this perfect and absolutely complete [6] virtue bestows on those who conquer, the crown and reward of immortality. ”

“ For, since man is composed of flesh and spirit, and the spirit must earn [4] immortality by works of righteousness, the flesh, since it is earthly, and therefore mortal, draws with itself the spirit linked to it, and leads it from immortality to death. Therefore the spirit, apart from the flesh, could by no means be a guide to immortality for man, since the flesh hinders the spirit from following God. ”

“ For this cause, therefore, a mediator came—that is, God in the flesh—that the flesh might be able to follow Him, and that He might rescue man from death, which has dominion over the flesh. Therefore He clothed Himself with flesh, that the desires of the flesh being subdued, He might teach that to sin was not the result of necessity, but of man’s purpose and will. ”