Bamidbar 29:12

12 And on the fifteenth day of the Chodesh HaShevi’ [i.e., Tishri] ye shall have a mikra kodesh; ye shall do no melekhet avodah, and ye shall celebrate a Chag [i.e., Sukkot, see Lv.23:33-36; Dt.16:13-15] unto Hashem shivat yamim;

Bamidbar 29:12 Meaning and Commentary

Numbers 29:12

And on the fifteenth day of the seventh month ye shall have
an holy convocation
Of the same month Tisri, which was the seventh from Nisan or Abib, though it was formerly the first month of the year:

ye shall do no servile work, and ye shall keep a feast unto the Lord
seven days;
the feast of tabernacles, which began on the fifteenth day of this month.

Bamidbar 29:12 In-Context

10 And one tenth ephah for each keves of the shivat hakevasim;

11 One male of the goats for a chattat; in addition to the chattat hakippurim (sin offering of the atonement), and the olat hatamid and its minchah and their nesakim.

12 And on the fifteenth day of the Chodesh HaShevi’ [i.e., Tishri] ye shall have a mikra kodesh; ye shall do no melekhet avodah, and ye shall celebrate a Chag [i.e., Sukkot, see Lv.23:33-36; Dt.16:13-15] unto Hashem shivat yamim;

13 And ye shall offer an olah, a fire-offering, a reach hannichoach unto Hashem; thirteen young bulls, two rams, and fourteen kevasim of the first year; they shall be temimim (unblemished ones);

14 And their minchah shall be of fine flour mixed with shemen, three tenths-ephah unto every bull of the thirteen bulls, two tenths-ephah to each ram of the two rams,