The feasts of the Jewish people are a source of fascination. They emit an intentional time of celebration, reflection, and repentance for the people as a whole. Rosh Hashanah is the feast of trumpets as explained in Leviticus 23:23-25 and is still celebrated by Orthodox Jews today.
A shofar is blown – a way to call the people together for reflection, prayer, and repentance. Apples, dipped in honey, are eaten – a way to symbolize the hope for a sweet new year. Special prayers are prayed – read from books of prayer and services are held in synagogues. These are beautiful pictures in the celebration of Rosh Hashanah. It is seen as one of the two High Holy Days (the other being Yom Kippur). For those following the Orthodox tradition, Rosh Hashanah is the beginning of the ten days of repentance or days of awe, ended on Yom Kippur or the Day of Atonement.
This Rosh Hashanah and the coming Yom Kippur, consider joining a local Jewish synagogue or Messianic congregation to celebrate with them, to learn from others, and to pray for the Jewish people.
To read more about Rosh Hashanah, Jews for Jesus has a succinct article regarding this holiday.