New Jerusalem is a living city and the consummation of all the spiritual blessings we have in the New Testament.
In 1 Timothy 3:15-16 Paul says, “I write that you may know how one ought to conduct himself in the house of God, which is the church of the living God, the pillar and base of the truth. And confessedly, great is the mystery of godliness: He who was manifested in the flesh…”
The house of God today is a living house, the church of the living God. This house will grow to the city of God, New Jerusalem.
The sentences above from 1 Timothy are joined by And.* And ties the house of God to the mystery of godliness, God manifested in the flesh. The New Testament begins with this manifestation, as seen in the early part of John 1 and in 1 John 1:1-3. This manifestation continues with the church as the house of the living God.
The New Testament manifestation of God consummates in New Jerusalem. The city has the glory of God; the glory has been wrought into the city. It is the ultimate manifestation of God.
We cannot say that the city is “God manifested in the flesh” for our fallen, sinful flesh will have been eliminated by our transfiguration at the Lord’s return (Philippians 3:21). However, we can say that New Jerusalem is God manifested in humanity. Those who believe in Jesus Christ will be glorified with Him (Romans 8:17, 30) when He returns, thereby allowing New Jerusalem to fully manifest God’s glory. Praise Him!
* Although And often does not appear in English Bibles, it is clearly in all Greek texts from which our English New Testaments are translated.