Numbers 29:1
“On the first day of the seventh month, you are to hold a sacred assembly, and you must not do any regular work. This will be a day for you to sound the trumpets.
Berean Standard Bible
And in the seventh month, on the first day of the month, ye shall have an holy convocation; ye shall do no servile work: it is a day of blowing the trumpets unto you.
“‘In the seventh month, on the first day of the month, you shall have a holy convocation; you shall do no regular work. It is a day of blowing of trumpets to you.