Rosh Hashanah, also known as the Feast of Trumpets. Spoken of in Leviticus 23:23-25.
23 And the Lord spake unto Moses, saying, 24 Speak unto the children of Israel, saying, In the seventh month, in the first day of the month, shall ye have a sabbath, a memorial of blowing of trumpets, an holy convocation. 25 Ye shall do no servile work therein: but ye shall offer an offering made by fire unto the Lord.
Rosh Hashanah is a Shabbat, no work is to be done on this day. Rather we are to enjoy the day with YAHUVEH GOD, everything we do on this day is done with ABBA YAHi. We worship, praise, adore, and just love YAHUSHUA. Rosh Hashanah is marked by the blowing of the shofar horn. It is on this Holy Day that YAHUSHUA ha MASHIACH will return. The Feast of Trumpets.
For the Lord himself shall descend from heaven with a shout, with the voice of the archangel, and with the trump of God: and the dead in Christ shall rise first: 17Then we which are alive and remain shall be caught up together with them in the clouds, to meet the Lord in the air: and so shall we ever be with the Lord. 1 Thessalonians 4:16.