Rom 6:9

“He declares in the plainest manner, that the same Being who was laid hold of, and underwent suffering, and shed His blood for us, was both Christ and the Son of God, who did also rise again, and was taken up into heaven, as he himself [Paul] says: "But at the same time, [it is] Christ [that] died, yea rather, that is risen again, who is even at the right hand of God." And again, "Knowing that Christ, rising from the dead, dieth no more:" for, as himself foreseeing, through the Spirit, the subdivisions of evil teachers [with regard to the Lord's person], and being desirous of cutting away from them all occasion of cavil, he says what has been already stated, [and also declares: ] "But if the Spirit of Him that raised up Jesus from the dead dwell in you, He that raised up Christ from the dead shall also quicken your mortal bodies." This he does not utter to those alone who wish to hear: Do not err, [he says to all: ] Jesus Christ, the Son of God, is one and the same, who did by suffering reconcile us to God, and rose from the dead; who is at the right hand of the Father, and perfect in all things; "who, when He was buffeted, struck not in return; who, when He suffered, threatened not;" and when He underwent tyranny, He prayed His Father that He would forgive those who had crucified Him. For He did Himself truly bring in salvation: since He is Himself the Word of God, Himself the Only-begotten of the Father, Christ Jesus our Lord.”

“If Christ were to die again, it follows that those who have died with him and who will be raised with him will also die again along with him! Therefore the apostle makes it clear that Christ will never die again, so that those who will live with him may be sure of having eternal life.…Paul was right to say that "death no longer has dominion over him." For he will never again give himself up to the rule of the tyrant, nor will he again empty himself in order to take the form of a servant and be made obedient unto death. Nor will he ever again endure the rule of the tyrant and of death in the form of a servant, even though he assumed it voluntarily and not because he was forced into it.”

“And notice again his undauntedness, and how he makes the thing good from opposite grounds. Since then it was likely that some would feel perplexed at the Cross and the Death, he shows that this very thing is a ground for feeling confident henceforward. For suppose not, he says, because He once died, that He is mortal, for this is the very reason of His being immortal. For His death hath been the death of death, and because He did die, He therefore doth not die.”

“For this sacrifice doth especially save our souls from everlasting damnation, which in mystery doth renew unto us the death of the Son of God: who although being risen from death, doth not now die any more, nor death shall not any further prevail against him: yet living in himself immortally, and without all corruption, he is again sacrificed for us in this mystery of the holy oblation: for there his body is received, there his flesh is distributed for the salvation of the people: there his blood is not now shed betwixt the hands of infidels, but poured into the mouths of the faithful.”

“Then when he says, knowing, he describes the condition of life of the risen Christ: first, he states it; second, he proves it, at for in that he died. First, therefore, he says: we believe this, I say, because we know that Christ, rising again from the dead, dies now no more, but will live an everlasting life: I died, and behold I am alive forevermore (Rev 1:18). What is more, death shall no more have dominion over him, but it does over man: not only when his soul and body are separated when he dies, but also before he dies, when he is subject to sickness, hunger, thirst, and such things as lead to death. From all these things the life of the risen Christ is free. Consequently, he is not subject to the dominion of death; rather, he has dominion over death: I have the keys of death and Hades (Rev 1:18).”