rosh hashanah

(23) And the LORD spoke unto Moses, saying: (24) Speak unto the children of Israel, saying: In the seventh month, in the first day of the month, shall be a solemn rest unto you, a memorial proclaimed with the blast of horns, a holy convocation. (25) Ye shall do no manner of servile work; and ye shall bring an offering made by fire unto the LORD.

They are four days in the year that serve as the New Year, each for a different purpose: On the first of Nisan is the New Year for kings; it is from this date that the years of a king’s rule are counted. And the first of Nisan is also the New Year for the order of the Festivals, as it determines which is considered the first Festival of the year and which the last. On the first of Elul is the New Year for animal tithes; all the animals born prior to that date belong to the previous tithe year and are tithed as a single unit, whereas those born after that date belong to the next tithe year. Rabbi Elazar and Rabbi Shimon say: The New Year for animal tithes is on the first of Tishrei. On the first of Tishrei is the New Year for counting years, as will be explained in the Gemara; for calculating Sabbatical Years and Jubilee Years, i.e., from the first of Tishrei there is a biblical prohibition to work the land during these years; for planting, for determining the years of orla, the three-year period from when a tree has been planted during which time its fruit is forbidden; and for tithing vegetables, as vegetables picked prior to that date cannot be tithed together with vegetables picked after that date. On the first of Shevat is the New Year for the tree; the fruit of a tree that was formed prior to that date belong to the previous tithe year and cannot be tithed together with fruit that was formed after that date; this ruling is in accordance with the statement of Beit Shammai. But Beit Hillel say: The New Year for trees is on the fifteenth of Shevat.

The Gemara explains: As it is taught in a baraita: All are judged on Rosh HaShana, and their sentence is sealed on Yom Kippur; this is the statement of Rabbi Meir. Rabbi Yehuda says: All are judged on Rosh HaShana, and their sentence is sealed each in its own time: On Passover the sentence is sealed concerning grain; on Shavuot concerning fruits that grow on a tree; on the festival of Sukkot they are judged concerning water; and mankind is judged on Rosh HaShana, and the sentence is sealed on Yom Kippur.

At four times of the year the world is judged: On Passover judgment is passed concerning grain; on Shavuot concerning fruits that grow on a tree on Rosh HaShana, all creatures pass before Him like sheep [benei maron], as it is stated: “He Who fashions their hearts alike, Who considers all their deeds” (Psalms 33:15); and on the festival of Sukkot they are judged concerning water, i.e., the rainfall of the coming year.

It is a positive commandment from the Torah to hear the sound of the shofar (animal horn) on Rosh Hashanah; as it is stated (Numbers 29:1), "it shall be a day of blowing for you." The shofar which is blown — both on Rosh Hashanah and for the Jubilee year — is a bent ram's horn. And all shofars are disqualified except for the horn of a ram. Even though blowing with a shofar is not mentioned explicitly [in the passage] about Rosh Hashanah; it surely does state about the Jubilee year (Leviticus 25:9), "you shall blast the shofar." And we have learned through the oral tradition that just as the blowing of the Jubilee year is with a shofar, so too is the blowing of Rosh Hashanah with a shofar.