The Triune God is unsearchably rich. These riches are in Christ and have been announced to us as the gospel, the good news (Eph. 3:8). The announcing enlightens us to see the mystery of God with the result that “the multifarious wisdom of God might be made known through the church” now (Eph 3:9-10) and through New Jerusalem in eternity.
The riches of Christ are all that Christ is and has and all that He has accomplished, attained, and obtained. The fullness of Christ is the result and issue of our enjoyment of these riches. When the riches of Christ are assimilated into our being metabolically, they constitute us to be the fullness of Christ, the Body of Christ, the church, as His expression.*
Here are prior posts about the riches and the fullness of God.
The Riches of God’s Glory In Ephesians 3 Paul prayed that the Father would strengthen us “according to the riches of His glory.” The outcome is an upward progression resulting in glory to God now in the church and eternally in New Jerusalem.
O the Depth of the Riches & Wisdom of God! Romans 11:33-36 is praise of “the depth of the riches and wisdom and knowledge of God!” It concludes, “To Him be the glory forever. Amen.”
Riches of God’s Glory, Now, New Jerusalem Romans 9:23: God wants to “make known the riches of His glory upon vessels of mercy, which He had before prepared unto glory.”
The Mystery of the Riches of God’s Glory New Jerusalem, the city of God’s glory, is a mystery. But God “willed to make known what are the riches of the glory of this mystery among the Gentiles, which is Christ in you, the hope of glory” (Col. 1:27).
Unsearchable Riches in New Jerusalem God works on and in us according to His riches, so “That He might display in the ages to come the surpassing riches of His grace in kindness toward us in Christ Jesus” (Eph. 2:7).
Christ as the Riches in Christian Life The Holy Spirit has been “poured out upon us richly through Jesus Christ our Savior” (Titus 3:5-6). Through the renewing of this Spirit, we become new to match New Jerusalem.
The Good News of the Riches of Christ A hymn (words music) says, “O the riches, O the riches, Christ my Savior is to me! How unsearchable their measure, Yet my full reality!”
New Jerusalem has the Fullness of Christ Ephesians 4:11-13 speaks about all the believers being perfected “unto the work of the ministry, unto the building up of the Body of Christ, until we all arrive…at the measure of the stature of the fullness of Christ.”
New Jerusalem: Fullness of the Triune God In this age the church “is His Body, the fullness of the One who fills all in all” (Eph. 1:22-23). In eternity New Jerusalem will be this fullness.
Church, City Full of Christ to Express Christ Another hymn (words music) says, “Riches of Christ we should enjoy And then His fulness we will be; Partaking of His very self, His testimony men will see.”
*From footnote 3 on Ephesians 3:19 in NT Recovery Version Online.
New Jerusalem - the Consummation 
Marcus Ampe
/ January 9, 2017You have it about a tri-une god, but Paul nor the other writers of the Holy scriptures do have it about a trinity, but talk about the Only One true God, the God of Israel Who is One God and not three in one.
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Don
/ January 9, 2017In Matthew 28 the Lord tells us to baptize people into the (ONE) name of the (THREE) Father, Son, and Holy Spirit. This is the Triune God.
25 English Bible translations affirm this; http://biblehub.com/matthew/28-19.htm
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Don
/ January 9, 2017Here is a very good 36 page booklet which looks at the key verses about the divine Trinity: https://www.livingstream.com/en/the-triune-god/5001001-concerning-the-triune-god–the-father-the-son-and-the-spirit.html
And here it is available for online reading: http://www.ministrybooks.org/alphabetical.cfm?s=C
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