At the end of the ages Christ will come in the glory of God the Father, He will make the Father known throughout all creation. The Holy Spirit will fill all things and enable all to be in union with God through Christ for eternity. Again we have the presence and action of the Holy Trinity.
What we know and experience now in the world as members of the Church will be manifested in power in the life of the kingdom to come. The essence of life everlasting is the life of the Holy Trinity, the same eternal life given to us already in the mystery of faith.
And I saw no temple in the city, for the Lord God Almighty and the Lamb (Christ) are the temple of it. And the city had no need of the sun … for the glory of God did lighten it, and the Lamb (Christ) is the light thereof…
And the throne of God and the Lamb (Christ) shall be in it, and his servants shall see him … and they shall see his face…
And the Spirit and the Bride (the Church) say Come!
(Rev 21:22; 22:3, 17)
In the eternal life of the Kingdom of God, the Holy Trinity will fill all creation: the Father through the Son in the Holy Spirit. Every man enlightened by Christ in the Spirit will know the invisible Father. “And this is eternal life, that they may know thee the only true God, and Jesus Christ whom thou hast sent” (Jn 17:3). Such knowledge is possible only by the indwelling of the Spirit of God, “the fullness of Him who fills all in all” (Eph 1:23; 2:22).
Come O Ye People! Let us adore the Three-Personal Godhead, the Son in the Father with the Holy Spirit.
For before all time the Father gave birth to the Son, co-eternal and co-enthroned with Himself.
And the Holy Spirit was in the Father, glorified with the Son.
Adoring One Power, One Essence, One Divinity, let us cry:
O Holy God who made all things by the Son through the cooperation of the Holy Spirit!
O Holy Mighty through whom we know the Father and through whom the Holy Spirit comes ino the world!
O Holy Immortal, the Spirit, the Comforter, who proceeds from the Father and rests in the Son!
O Most Holy Trinity! Glory to Thee!
(The Vespers of Pentecost)