Leviticus 23:24

Speak unto the children of Israel, saying, In the (k) seventh month, in the first [day] of the month, shall ye (l) have a sabbath, a memorial of (m) blowing of trumpets, an holy convocation.

(k) That is, about the end of September.

(l) Or, a holy day to the Lord.

(m) Which blowing was to remind them of the many feasts that were in that month, and of the Jubile.