Other days of holy convention or Sabbath were: the first day of the seventh month (Le 23:24) and the Day of Atonement on the tenth day of the seventh month. (Le 23:26-32) The festival periods, and particularly certain days thereof, were observed as “holy conventions.” (Le 23:37, 38) These festivals were Passover and the Festival of Unfermented Cakes (Le 23:4-8); Pentecost, or the Festival of Weeks (Le 23:15-21); and the Festival of Booths, or Ingathering.​—Le 23:33-36, 39-43; see CONVENTION.

Jehovah commanded that his people ‘afflict their souls’ on the Day of Atonement, a day of “holy convention.” This meant that they should fast and should recognize and confess their sins as well as feel godly sorrow for them. (Le 16:29-31; 23:26-32) But no day holy to Jehovah was to be a day of weeping and sadness for his people. Rather, those days were to be days of rejoicing and declaring of praise to Jehovah for his marvelous provisions through his loving-kindness.​—Ne 8:9-12.