Lev 23:23 And יהוה  spoke to Mosheh, saying,

Lev 23:24 "Speak to the children of Yisra’ĕl, saying, ‘In the seventh month, on the first day of the month, you have a rest, a remembrance of blowing of trumpets, a set-apart gathering.

Lev 23:25 ‘You do no servile work, and you shall bring an offering made by fire to יהוה.’ "