The Feast of Tabernacles (also known as the Feast of Tents, or Booths) is known to the Jews as Sukkot (tents). It is a week-long celebration, commemorating the time when God encamped with Israel in the wilderness, when they were safe under His protection (though at times they forgot it and murmured).
Prophetically, it speaks of two events, the first of which has been fulfilled, the second is yet to come in the not too distant future.
We believe that Yeshua’s birth was the first fulfillment of this holiday with the Holy Spirit filling from birth a temporary dwelling of flesh in which He grew, ministered, exemplified a godly life that fulfilled all the commandments, was crucified and died for our sins, and was buried. The third day He rose from the dead with a transformed immortal body which was His new dwelling place into all of Future Eternity.
The fulfillment which is yet to come is the Millennial Kingdom when Jesus will descend to earth with thousands of His saints, defeat the forces of the Beast with the breath of His mouth, and set up a Kingdom which will last for a thousand years. This will be the Kingdom Dispensation, and after God has fulfilled His purposes for that dispensation, He will dissolve the present Heavens and the present Earth, and create New Heavens and a New Earth.
The city called Heavenly Jerusalem will then descend out of God and will be juxtaposed so as to be placed (like a geostationary satellite) above Jerusalem on earth.
The Heavenly Jerusalem will be the capital of the earth and the heavens. Earthly Jerusalem will be its physical counterpart continuing its role of world capital established with the Millennial Kingdom.