Rosh Hashanah traditionally calls on people to consider how they might have failed or fallen short in the past year – and how to improve and grow in the coming year. The holiday “commemorates the creation of the world,” according to History.
It is a festive holiday, so if you want to keep it simple, "Happy New Year," works just fine. Jews will often greet one another by saying "Shanah tovah" (pronounced shah-NAH toe-VAH), which means "Good year."
In 2022, Rosh Hashanah will begin at sundown on September 25th and end at sundown on September 27th. In many ways, being in Israel during Rosh Hashanah is like Shabbat where most businesses are closed.
Tradition has it that Yom Teruah (feast of Trumpets), was the birth-day of the world and the day upon which Adam sinned and was forgiven and therefore the time when the coming of a Saviour/Redeemer was made known to them as the plan of salvation for their redemption.
Both days are considered one long day of 48 hours. Known as the Feast of Trumpets, Rosh Hashanah is recorded in the Old Testament book of Leviticus 23:23-25 and also in Numbers 29:1-6.