Leviticus 23:23-25
Leviticus 23:23-25 NKJV
Then the LORD spoke to Moses, saying, “Speak to the children of Israel, saying: ‘In the seventh month, on the first day of the month, you shall have a sabbath-rest, a memorial of blowing of trumpets, a holy convocation. You shall do no customary work on it; and you shall offer an offering made by fire to the LORD.’ ”