He took upon Himself our human flesh, which was subject to suffering and death, even though it was completely pure, and He used it in His divine wisdom as a bait to hook the serpent, the originator of evil, through the Cross, and set free the whole human race which he had enslaved.
When a tyrant falls, all those he tyrannized are liberated. This is what the Lord Himself said in the Gospels, that the strong man was bound and his goods spoiled (cf Matthew 12.29).
His possessions were taken as spoil by Christ, and were set free, justified, filled with light and endowed with divine gifts.
As David sings, “Thou hast ascended on high,” up on to the Cross, or, if you wish, up to heaven, “thou hast led captivity captive: thou hast given gifts to men” (Ephesians 4.8; cf Psalm 67/68:18).
Christ 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 our human race.
He underwent the passion according to the Father’s will and became for us, who were destroyed through disobedience and saved through obedience, an example of how obedient we should be.
He showed that death was far more precious than the devil’s immortality, because it procured life that was truly immortal, life that will not be subject to the second and eternal death, but stays with Christ in the heavenly dwellings.
When Christ had risen from the dead on the third day and had shown Himself alive to His disciples, He ascended into heaven.
He remained immortal and bestowed on us, with complete assurance, resurrection, immortality and truly blessed, eternal, incorruptible life in heaven.
By means of the one death and resurrection of His flesh, He healed our twofold death and freed us from our double captivity of soul and body.
The Lord has given us rebirth through divine baptism and sealed us with the grace of the Holy Spirit for the day of redemption (cf Ephesians 4.30), but He has allowed us still to have a body which is mortal and passible.
Although He has cast out the teacher of evil from the treasure houses of our soul, yet He allows him to attack from without.
This is so that anybody who has been renewed in accordance with the new covenant, that is to say, the gospel of Christ, who lives in good works and repentance, despises the delights of this life, endures suffering and is trained in the enemy’s assaults, can be made ready to receive immortality and the incorruptible good things to come in the new age.