Zacharias 3:4

From which things it is evident that all the prophets declared concerning Christ, that it should come to pass at some time, that being born with a body of the race of David , He should build an eternal temple in honour of God, which is called the Church, and assemble all nations to the true worship of God. This is the faithful house, this is the everlasting temple; and if any one hath not sacrificed in this, he will not have the reward of immortality. And since Christ was the builder of this great and eternal temple, He must also have an everlasting priesthood in it; and there can be no approach to the shrine of the temple, and to the sight of God, except through Him who built the temple. David in the cixth Psalm teaches the same, saying: “Before the morning-star I begat Thee. …

Now some one will ask how this statement that there is no darkness in Him can be regarded as a thing peculiar to Him, when we consider that the Saviour also was quite without sin. Could it not be said of Him also that “He is light, and that there is no darkness in Him”? The difference between the two cases has been partly set forth above. We will now, however, go a step further than we did before, and add, that if God made Christ who knew no sin to be sin for us, then it could not be said of Him that there was no darkness in Him. For if Jesus was in the likeness of the flesh of sin and for sin, and condemned sin by taking upon Him the likeness of the flesh of sin, then it cannot be said of Him, absolutely and directly, that there was no darkness in Him. …

As to the passage, which he seemed to himself to indite in a pious vein, as it were, “If nature is of God, there cannot be original sin in it,” would not another person seem even to him to give a still more pious turn to it, thus: “If nature is of God, there cannot arise any sin in it?” And yet this is not true. The Manicheans, indeed, meant to assert this, and they endeavoured to steep in all sorts of evil the very nature of God itself, and not His creature, made out of nothing. For evil arose in nothing else than what was good, not, however, the supreme and unchangeable good which is God’s nature, but that which was made out of nothing by the wisdom of God. This, then, is the reason why man is claimed for a divine work; for he would not be man unless he were made by the operation of God. …

114. Lastly, that we may know that this mystery of the common redemption was most clearly revealed by the prophets, you have also in this place: “Lo, it hath taken away thy sins;” not that Christ put aside His sins Who did no sin, but that in the flesh of Christ the whole human race should be loosed from their sins.