A Window to the Future
The eight feasts, which God gave the nation of Israel, are all mentioned in Leviticus 23. While Shabbat is celebrated weekly the rest are annual feasts. God literally called them ‘My appointed times’ - Moadai (v2), and said they are holy. This means that these Feasts are actually specific appointed times by God. As we study their prophetic fulfilment we see that they were used as time "mile stones" on God's plan of salvation for human kind. This is why He calls them holy; they are dedicated to His use.
The spring feasts have all been fulfilled. Pessach (Passover) foreshadowed the coming of Yeshua, the Son of God, to die on the cross. The Feast of Unleavened Bread was a picture of Yeshua's resurrection and ascension back to heaven. Shavuot (Pentecost) was the coming down of God the Holy Spirit on the first Kehilah (church). Each one of these was fulfilled on the exact day the respective feast was celebrated.
Then comes the long hot summer months, which are a prophetic picture of the 2,000 years of exile. The last four Fall Feasts are all still prophetic and about to be fulfilled.
The literal Scriptural name of Rosh Hashanah is “remembrance of the [trumpet] blow”. This appointed time of God is next in line to be fulfilled. God wants us all to remember the coming sound of the trumpet, which will come by surprise (Matt 24:42). The bride of Christ, the church which was born at Pentecost, will be taken up to heaven at the sound of the big (last) trumpet (I Thess 4:13-18, I Cor 15:51-54). While the spring feasts were all fulfilled on the exact day that each feast was celebrated, we know that the rapture will take place at a time we do not know.
The next appointed time is the Day of Atonement, Yom Kippur. God's message and call at this appointed time was one of painful repentance. This feast foreshadows the time of Jacob’s tribulation, when all nations will come against us for war. Then, as a nation, we will go into deep sorrow of conviction and repentance (Zech 12:10-14, 14:1-2, Jer 30:3-7). The Holy Spirit will come upon us as a nation, and will open our eyes to see Yeshua (Zech 12:10, Ezek 36:24-28, Joel 2:28-32). Our repentance and call upon Him will trigger His second advent coming down from heaven to rule the world as King (Matt 23:39, Zech 12:9, Jer 30:8-10, Rev 19:11-16, Zech 14:3-5). The Feast of Tabernacles commemorates the day His Kingdom will be established on earth and will be celebrated throughout the millennial kingdom.
The last of the eight feasts is called Shmini Atzeret, which means the great assembly or holy convocation (Lev 23:36). This appointed time foreshadows the end of this heaven and earth and our entrance into the great heavenly assembly in eternity (Heb12:22-24, Rev 21:1-5).