"[T]he Word, being the Image of the Father and immortal, took the form of the servant, and as man underwent for us death in His flesh, that thereby He might offer Himself for us through death to the Father...Formerly the world, as guilty, was under judgment from the Law; but now the Word has taken on Himself the judgment, and having suffered in the body for all, has bestowed salvation to all". (St. Athanasios the Great, Contra Arianos I.41,60)
"But beyond all this, there was a debt owing which must needs be paid; for, as I said before, all men were due to die. Here, then, is the second reason why the Word dwelt among us, namely that having proved His Godhead by His works, He might offer the sacrifice on behalf of all, surrendering His own temple to death in place of all, to settle man's account with death and free him from the primal transgression. In the same act also He showed Himself mightier than death, displaying His own body incorruptible as the first-fruits of the resurrection." (St. Athanasios the Great, De Incarnatione, 20)
"Now as to the season spoken of, he will find for certain that, whereas the Lord always is, at length in fulness of the ages He became man; and whereas He is Son of God, He became Son of man also. And as to the object he will understand, that, wishing to annul our death, He took on Himself a body from the Virgin Mary; that by offering this unto the Father a sacrifice for all, He might deliver us all, who by fear of death were all our life through subject to bondage." (St. Athanasios the Great, De Decretis, 14)
"If Phinees, when he waxed zealous and slew the evil-doer, staved the wrath of God, shall not Jesus, who slew not another, but gave up Himself for a ransom, put away the wrath which is against mankind?...Further; if the lamb under Moses drove the destroyer far away, did not much rather the Lamb of God, which taketh away the sin of the world, deliver us from our sins? The blood of a silly sheep gave salvation; and shall not the Blood of the Only-begotten much rather save?...Jesus then really suffered for all men; for the Cross was no illusion, otherwise our redemption is an illusion also...These things the Saviour endured, and made peace through the Blood of His Cross, for things in heaven, and things in earth. For we were enemies of God through sin, and God had appointed the sinner to die. There must needs therefore have happened one of two things; either that God, in His truth, should destroy all men, or that in His loving-kindness He should cancel the sentence. But behold the wisdom of God; He preserved both the truth of His sentence, and the exercise of His loving-kindness. Christ took our sins in His body on the tree, that we by His death might die to sin, and live unto righteousness." (Cyril of Jerusalem, Catechetical Lectures, XIII)
"Note carefully in the above the words, "I gave to you upon the altar to make atonement for your souls; for the blood shall make atonement for the soul." He [Moses] says clearly that the blood of the victims slain is a propitiation in the place of human life. And the law about sacrifices suggests that it should be so regarded, if it is carefully considered. For it requires him who is sacrificing always to lay his hands on the head of the victim, and to bear the animal to the priest held by its head, as one offering a sacrifice on behalf of himself. Thus he says in each case: "He shall bring it before the Lord. And he shall lay his hands on the head of the gift." Such is the ritual in every case, no sacrifice is ever brought up otherwise. And so the argument holds that the victims are brought in place of the lives of them who bring them...While then the better, the great and worthy and divine sacrifice was not yet available for men, it was necessary for them by the offering of animals to pay a ransom for their own life, and this was fitly a life that represented their own nature. Thus did the holy men of old, anticipating by the Holy Spirit that a holy victim, dear to God and great, would one day come for men, as the offering for the sins of the world, believing that as prophets they must perform in symbol his sacrifice, and shew forth in type what was yet to be. But when that which was perfect was come, in accordance with the predictions of the prophets, the former sacrifices ceased at once because of the better and true Sacrifice.
"This Sacrifice was the Christ of God, from far distant times foretold as coming to men, to be sacrificed like a sheep for the whole human race. As Isaiah the prophet says of him: "As a sheep he was led to slaughter, and as a lamb dumb before her shearers." And he adds: "He bears our sins and is pained for us; yet we accounted him to be in trouble, and in suffering and in affliction. But he was wounded on account of our sins, and he was made sick on account of our iniquities, the chastisement of our peace was upon him, and with his stripe we are healed. ...And the Lord hath given him up for our iniquities ...for he did no sin himself, nor was guile found in his mouth.'' Jeremiah, another Hebrew prophet, speaks similarly in the person of Christ: "I was led as a lamb to the slaughter." John Baptist sets the seal on their predictions at the appearance of our Saviour. For beholding Him, and pointing Him out to those present as the one foretold by the prophets, he cried: "Behold the Lamb of God, which taketh away the sin of the world."
"Since then according to the witness of the prophets the great and precious ransom has been found for Jews and Greeks alike, the propitiation for the whole world, the life given for the life of all men, the pure offering for every stain and sin, the Lamb of God, the holy sheep dear to God, the Lamb that was foretold, by Whose inspired and mystic teaching all we Gentiles have procured the forgiveness of our former sins, and such Jews as hope in Him are freed from the curse of Moses, daily celebrating His memorial, the remembrance of His Body and Blood, and are admitted to a greater sacrifice than that of the ancient law, we do not reckon it right to fall back upon the first beggarly elements, which are symbols and likenesses but do not contain the truth itself. And any Jews, of course, who have taken refuge in Christ, even if they attend no longer to the ordinances of Moses, but live according to the new covenant, are free from the curse ordained by Moses, for the Lamb of God has surely not only taken on Himself the sin of the world, but also the curse involved in the breach of the commandments of Moses as well. The Lamb of God is made thus both sin and curse—sin for the sinners in the world, and curse for those remaining in all the things written in Moses' law. And so the Apostle says: "Christ has redeemed us from the curse of the law, being made a curse for us"; and "Him that knew no sin, for our sakes he made sin."For what is there that the Offering for the whole world could not effect, the Life given for the life of sinners, Who was led as a lamb to the slaughter, and as a lamb to the sacrifice, and all this for us and on our behalf? And this was why those ancient men of God, as they had not yet the reality, held fast to their symbols.
"He then that was alone of those who ever existed, the Word of God, before all worlds, and High Priest of every creature that has mind and reason, separated One of like passions with us, as a sheep or lamb from the human flock, branded on Him all our sins, and fastened on Hirn as well the curse that was adjudged by Moses' law, as Moses foretells: "Cursed is every one that hangeth on a tree." This He suffered "being made a curse for us; and making himself sin for our sakes."And then "He made him sin for our sakes who knew no sin,"and laid on Him all the punishments due to us for our sins, bonds, insults, contumelies, scourging, and shameful blows, and the crowning trophy of the Cross. And after all this when He had offered such a wondrous offering and choice victim to the Father, and sacrificed for the salvation of us all, He delivered a memorial to us to offer to God continually instead of a sacrifice." (Eusebius of Caesarea, Demonstratio Evangelica, I.10)
"And the Lamb of God not only did this, but was chastised on our behalf, and suffered a penalty He did not owe, but which we owed because of the multitude of our sins; and so He became the cause of the forgiveness of our sins, because He received death for us, and transferred to Himself the scourging, the insults, and the dishonour, which were due to us, and drew down on Himself the apportioned curse, being made a curse for us. And what is that but the price of our souls? And so the oracle says in our person: "By his stripes we were healed," and "The Lord delivered him for our sins," with the result that uniting Himself to us and us to Himself, and appropriating our sufferings, He can say, "I said, Lord, have mercy on me, heal my soul, for I have sinned against thee." (Eusebius of Caesarea, Demonstratio Evangelica, X.1)
“A sacrifice was needed to reconcile the Father on high with us and to sanctify us, since we had been soiled by fellowship with the evil one. There had to be a sacrifice which both cleansed and was clean, and a purified, sinless priest…. God overturned the devil through suffering and His Flesh which He offered as a sacrifice to God the Father, as a pure and altogether holy victim – how great is His gift! – and reconciled God to the human race…Since He gave His Blood, which was sinless and therefore guiltless, as a ransom for us who were liable to punishment because of our sins, He redeemed us from our guilt. He forgave us our sins, tore up the record of them on the Cross and delivered us from the devil’s tyranny. The devil was caught by the bait. It was as if he opened his mouth and hastened to pour out for himself our ransom, the Master’s Blood, which was not only guiltless but full of divine power. Then instead of being enriched by it he was strongly bound and made an example in the Cross of Christ. So we were rescued from his slavery and transformed into the kingdom of the Son of God. Before we had been vessels of wrath, but we were made vessels of mercy by Him Who bound the one who was strong compared to us, and seized his goods.” (St. Gregory Palamas, Homily 16, 21, 24, 31)