The fourth festival of God (after Pentecost) is the Feast of Trumpets (or a "memorial of blowing of trumpets," Leviticus 23:24-25), which falls in September or October. This festival is called Rosh Hashanah by the Jews today. Ancient Israel understood that trumpets were used as a way of announcing special, very important messages (Numbers 10:1-10).

In the New Testament, Jesus Christ reveals that before His return to the earth, there will be the blowing of seven trumpets, announcing progressive stages of the downfall and overthrow of this world's kingdoms, ending with the return of Christ to take possession of the earth. Christ's return is announced by the seventh and final trumpet (Revelation 8:2; Revelation 11:15). This day also pictures the time when faithful Christians will be resurrected to eternal life at the time of the seventh trumpet (1 Corinthians 15:52; 1 Thessalonians 4:16) to reign with Jesus Christ for 1,000 years (Revelation 20:4-6).

Interestingly, it was around this time of year that Jesus was born—not in the dead of winter (see "Biblical Evidence Shows Jesus Wasn't Born on December 25"). And the fall feast season represents the time when Jesus Christ will come to the earth again to reign in glory.

The remaining fall feast days describe steps in the establishment of the prophesied Kingdom of God on earth and judgment of humanity after Christ's return. The Feast of Trumpets is followed by the Day of Atonement.