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.
The King James Version is in the public domain.