Who Said That?

"Man, however, whose nature was to be in a manner intermediate between angels and beasts, God created in such a way that, if he remained subject to his Creator as his true Lord, and if he kept the commandments with pious obedience, He should pass over into the company of the angels and obtain, without suffering death, a blessed immortality without end. But if he offended the Lord his God by using his free will proudly and disobediently, he should live, as the beasts do, subject to death: the slave of his own lust, destined to suffer eternal punishment after death."
You know the drill. Leave your guess in the comments section below. Please, no google searches or cheating. Answer to follow next week.

This quote--which clearly describes a covenant of works--comes from St. Augustine, in the City of God, XII.22. I thought that Reformed scholastics invented this out of whole cloth.