The Day of Atonement, the great annual day of humiliation and expiation for the sins of the nation, "the fast,"1 and the only one commanded in the law of Moses. The mode of its observance is described in Lev. 16:3-10; 23:26-32; and Num. 29:7-11. It was kept on the tenth day of Tishrei, i.e., five days before the feast of Tabernacles (Sukkot), and lasted from sunset to sunset.
It is the holiest day of the year for the Jewish people
Tishrei (Hebrew תִּשְׁרֵי) is the seventh month of the religious year, falling between September to October.
- Easton, M.G. (1897). Easton's Bible Dictionary. New York: Harper & Brothers.