Rosh Hashanah is nowhere in the Bible, torah or scriptures

Based on the false orthodox calculated Babylon influenced Jewish calendar.

https://en.m.wikipedia.org/wiki/Hebrew_calendar

God placed his calendar in the heavens when he created the world.

Its still there and very important for anyone who believes in him to understand.

Genesis 1:13-15

Today is Yom Teruah, the day of trumpets

Leviticus 23:23-32

Numbers 29

Just so happens the orthodox calendar and biblical calendar line up perfectly this year.

God’s calendar is a very important thing for a Christian to be familiar with as well as and understanding of his commanded feasts.

Everything Yeshua did was fulfilling the prophetic shadows the feasts are rehearsals of