The size of New Jerusalem is in Revelation 21:16, “the city lies square, and its length is as great as the breadth. And he [an angel] measured the city with the reed to a length of twelve thousand stadia; the length and the breadth and the height of it are equal.”
This city has three equal dimensions (Rev. 21:16). In the entire Bible the only other structure that is equal in all three dimensions is the Holy of Holies. Whether in the tabernacle or in the temple, the Holy of Holies was always in three equal dimensions. In the tabernacle it was ten by ten by ten cubits, and in the temple it was twenty by twenty by twenty cubits (1 Kings 6:20). The entire city of the New Jerusalem is in three equal dimensions. This proves that the whole city is the Holy of Holies.*
New Jerusalem is the eternal holy of holies. How great is the increase in size from the Old Testament shadows! This shows how much God desires to expand His building work within man.
The expansion of God’s building depends on the rich supply flowing out from Christ the Head for the building of His Body in this age. For this flow to be applied we need to hold to Christ (Col. 2:19) dropping all other concerns, and to grow out of ourselves and into Him (Eph. 4:15-16).
The path to the manifestation of New Jerusalem is by His growth in us. It is not by merely waiting for the city to pop out of heaven. Christ needs to have His unlimited magnitude grow in all of us to bring forth New Jerusalem.
* Excerpt from The Vision of God’s Building by Witness Lee, chapter 18, © LSM