What is it about? The children of Israel would blow the trumpets at the beginning of the month. Also, before going off to war they would sound or blow the trumpet and the Most High would remember them and save them from their enemies.
How do we celebrate this Holy Day? We are to have a Holy Convocation and a Feast unto the Most High.
How did Christ fulfilled this Holy Day:
The Most High sent forth teachers in the earth who are commanded to blow the trumpet and warn His people (Isa 58:1). The book of Revelations also mentions the blowing of trumpets which will lead to Yashaya’s coming.
Leviticus 23:23-26, Numbers 29:1-6, Numbers 10:9-10, Isa 58:1