Continued from here….
When all things are subjected to him, then the Son himself will also be subjected to him who put all things in subjection under him, that God may be all in all (1 Corinthians 15:28).
Christ eternally builds himself up by those who join themselves to him in faith.
It is clear that when this is accomplished, Christ receives in himself all who are joined to him through the fellowship of his body.
Christ makes everyone as limbs of his own body – even if there are many such limbs, the body is one.
Therefore, by uniting us to himself, Christ is our unity; and having become one body with us through all things, he looks after us all.
Subjection to God is our chief good when all creation resounds as one voice, when everything in heaven, on earth and under the earth bends the knee to him, and when every tongue will confess that has become one body and is joined in Christ through obedience to one another, he will bring into subjection his own body to the Father.
Let not what is said here sound strange to anyone, for we ascribe to the soul a certain means of expression taken from the body.
That which is read as pertaining to the fruitfulness of the land may also be applied to one’s own soul: “Eat, drink, and be merry” (Lk 11.19). This sentence may be referred to the fullness of the soul.
Thus, the subjection of the Church’s body is brought to him who dwells in the soul. Since everything is explained through subjection as the book of Psalms suggests. As a result, we learn that faith means not being apart from those who are saved.
This we learn from the Apostle Paul. Paul signifies, by the Son’s subjection, the destruction of death. Therefore, these two elements concur, that is, when death will be no more, and everything will be completely changed into life.
The Lord is life. According to the apostle, Christ will have access to the Father with his entire body when he will hand over the kingdom to our God and Father. Christ’s body, as it is often said, consists of human nature in its entirety to which he has been united.
Because of this, Christ is named Lord by Paul, as mediator between God and man (1 Tim 2.5). He who is in the Father and has lived with men accomplishes intercession.
Christ unites all mankind to himself, and to the Father through himself, as the Lord says in the Gospel, “As you, Father, are in me, and I am in you, that they may be one in us” (Jn 17.21).
This clearly shows that having united himself to us, he who is in the Father effects our union (sunapheia) with this very same Father.
Gregory of Nyssa (c 335 – after 394): A Treatise on 1 Corinthians 15:28.