The Feast of Trumpets

Leviticus 23

²³ And the Lord spoke to Moses, saying, ²⁴ "Speak to the people of Israel, saying, In _l the seventh month, on the first day of the month, you shall observe a day of solemn rest, _m a memorial proclaimed with blast of trumpets, a holy convocation. ²⁵ You shall not do any ordinary work, and you shall present a food offering to the Lord."

1. Cross References
   Numbers 29:1
   On the first day of the seventh month you shall have a holy convocation. You shall not do any ordinary work. It is a day for you to blow the trumpets.
   
2. Cross References
   Leviticus 25:9
   Then you shall sound the loud trumpet on the tenth day of the seventh month. On the Day of Atonement you shall sound the trumpet throughout all your land.