That the feast of Tabernacles is the one feast preserved throughout the millenium reign of Christ indicates that this is the one feast that will not be fulfilled until the whole world is at-one-ment with God. The three fall feasts, trumpets, atonement, and tabernacles are called the feasts of prophecy because they are yet to be fulfilled. Of these three, only tabernacles remains open to be fulfilled, as offered to the peoples of the world during the 1000 year reign of Christ.
We see at the end of the book of Revelation, the bride and the Lamb are beckoning those without the holy city to wash their robes with the blood of the Lamb and become a part of the kingdom. The implications of this is that all will eventually be saved by grace.17 And the Spirit and the bride say, Come. And let him that heareth say, Come. And let him that is athirst come. And whosoever will, let him take the water of life freely.
This day of the Lord, also known as the day of rest or the 7th day of creation week will last for 1000 years.
Traditionally, Psalm 27 is recited at the service of the Feast of Tabernacles. Bible prophecy tells us that people from the nations of the world will come up to celebrate the Feast of Tabernacles with the Jewish people in Jerusalem. And it shall come to pass, that every one that is left of all the nations which came against Jerusalem shall even go up from year to year to worship the King, the LORD of hosts, and to keep the feast of tabernacles. And it shall be, that whoso will not come up of all the families of the earth unto Jerusalem to worship the King, the LORD of hosts, even upon them shall be no rain"
During the Millennium Kingdom when Christ will rule for a thousand years from His throne in Jerusalem all the nations of the earth will be commanded to come and celebrate the Feast of Tabernacles. If they refuse to come, which means that they are not trusting in the Lord for their substance and living. Therefore the Lord will withhold rain from their nation as punishment and the natural result of refusing God's provision. Further it also pictures that God will not pour out the Holy Spirit on those who refuse His offer of salvation, who are invited to come and receive freely His mercy and grace.
According to God's instructions on the first day of the feast thirteen bullocks were offered and each day that followed on less bullock was offered which meant that seventy were offered.
Two things characterized the Feast of Tabernacle from the other feasts. One was the illumination of the Temple and the other the pouring of a vessel of water into a basin that was located at the base of the altar.
First the golden vessel of water was filled at the pool of Sloam and taken to the altar. Next another golden vessel would be filled with wine and they both would be poured together into the basin. The mixed water and wine would flow down a conduit which carried the water to the Brook of Kidron located across from the eastern wall.
This was ritual symbolized the prayer for the Fall rains upon which Israel depended. Second it pictured the coming of the Messiah and His kingdom in which the Holy Spirit would be poured on Israel and believers of all nations. This ritual of water pouring was continued for six days and concluded the Feast of Tabernacles
This last day was called the "Day of the Great Hosanan" (Hoshannah Rabbah). The word "Hoshannah" means to "save now."
and applied to the feast became "Hosanna" which looked forward to the coming of the Messiah.
This makes the event of Jesus entering the city in what is called the 'Triumphant Entry" come alive for us as we under its significance. John records in John 12:13 that as Jesus entered Jerusalem the people. " Took branches of palm trees, and went forth to meet him, and cried, Hosanna: Blessed is the King of Israel that cometh in the name of the Lord." They were crying "Save us, Son of David." Matthew 21:15 records the chief priest and scribes became gravely upset because this greeting and prayer was reserved only for the coming of the Messiah. Mark records that the people also cried "Blessed be the kingdom of our father David, that cometh in the name of the Lord: Hosanna in the highest." (Mark 11:10).
Following His entry into Jerusalem Jesus went to the Temple and proclaimed "In the last day, that great day of the feast, Jesus stood and cried, saying, If any man thirst, let him come unto me, and drink. He that believeth on me, as the scripture hath said, out of his belly shall flow rivers of living water."
(John 7:38-39). The words "In the last day" means that this event occurred on the last day of the Feast of Tabernacles.
Another feature of the feast is was illumination of the Temple. The pilgrims who came to the Temple would bring lights and torches. Further the golden lamps stands would also be lighted illuminating the Temple. This too prophetically looked forward to the coming of the Messiah. Jesus the Messiah identified Himself as that saving light in John 8:12 saying " Then spake Jesus again unto them, saying, I am the light of the world: he that followeth me shall not walk in darkness, but shall have the light of life."
Paul when he arrived in Antioch in Pisidia (Asia) proclaim this truth to the Jews there saying, "For so hath the Lord commanded us,
saying, I have set thee to be a light of the Gentiles, that thou shouldest be for salvation unto the ends of the earth"
(Acts 13:47). Paul preached that he was sent to take this light, which was the Gospel of Jesus Christ, unto all the world.http://bible-truth.org/Feasts-Tabernacles.html
The Lord is my light and my salvation; whom shall I fear? the Lord is the strength of my life; of whom shall I be afraid?
2 When the wicked, even mine enemies and my foes, came upon me to eat up my flesh, they stumbled and fell.
3 Though an host should encamp against me, my heart shall not fear: though war should rise against me, in this will I be confident.
4 One thing have I desired of the Lord, that will I seek after; that I may dwell in the house of the Lord all the days of my life, to behold the beauty of the Lord, and to enquire in his temple.
5 For in the time of trouble he shall hide me in his pavilion: in the secret of his tabernacle shall he hide me; he shall set me up upon a rock.
6 And now shall mine head be lifted up above mine enemies round about me: therefore will I offer in his tabernacle sacrifices of joy; I will sing, yea, I will sing praises unto the Lord.
7 Hear, O Lord, when I cry with my voice: have mercy also upon me, and answer me.
8 When thou saidst, Seek ye my face; my heart said unto thee, Thy face, Lord, will I seek.
9 Hide not thy face far from me; put not thy servant away in anger: thou hast been my help; leave me not, neither forsake me, O God of my salvation.
10 When my father and my mother forsake me, then the Lord will take me up.
11 Teach me thy way, O Lord, and lead me in a plain path, because of mine enemies.
12 Deliver me not over unto the will of mine enemies: for false witnesses are risen up against me, and such as breathe out cruelty.
13 I had fainted, unless I had believed to see the goodness of the Lord in the land of the living.
14 Wait on the Lord: be of good courage, and he shall strengthen thine heart: wait, I say, on the Lord.