The Feast of Trumpets marked the beginning of ten days of consecration and repentance before God. It is one of seven Jewish feasts or festivals appointed by the LORD and one of three feasts that occur in the autumn. The Feast of Trumpets began on the first day (at the new moon) of the seventh month. Its name comes from the command to blow trumpets (Leviticus 23:24; Numbers 29:1-6). It is also called Rosh Hashanah, which means “Head of the Year,” because it marks the beginning of the Jewish civil calendar. During this celebration, no kind of work was to be performed, but burnt offerings and a sin offering were to be brought before the Lord.
In the Leviticus passage, the words trumpet blasts are a translation of the Hebrew word teruah, which means “a shout” or “a blowing.” It appears that the shofar (ram’s horn) was to be blown at this time, as it was on the other new moons (Psalm 81:3). Jewish tradition indicates that both the ram’s horn and the priestly silver horns (hazozerah) were used in the Feast of Trumpets.
The Feast of Trumpets was important for several reasons. First, it commemorated the end of the agricultural and festival year. Also, the Day of Atonement fell on the tenth day of this month, and the Festival of Booths began on the fifteenth day. The blowing of the trumpets on first day of the month heralded a solemn time of preparation for the Day of Atonement; this preparation time was called “Ten Days of Repentance” or the “Days of Awe.” The trumpet sound was an alarm of sorts and can be understood as a call to introspection and repentance.
The Feast of Trumpets, along with the other six festivals of the LORD, foreshadowed certain aspects of the ministry of Jesus Christ. The prophets linked the blowing of trumpets to the future Day of Judgment: “Blow the trumpet in Zion; sound the alarm on my holy hill. Let all who live in the land tremble, for the day of the LORD is coming. It is close at hand” (Joel 2:1; see also Zephaniah 1:14, 16).
In the New Testament, we see that the Lord’s Second Coming will be accompanied by the sound of a trumpet (1 Corinthians 15:51-52; 1 Thessalonians 4:16-17). Each of the judgments in Revelation 8-9 is also signaled by a trumpet. Just as the shofar called the Jewish nation to turn their attention to the Lord and ready themselves for the Day of Atonement, so will the “trump of God” call us to heaven and warn the world of coming judgment.