Leviticus 23:36

a solemn assembly R.V. mg. closing festival. The Heb. word (- ăẓéreth) does not in itself involve the idea of solemnity. It is used of the closing day of the Feast of Unleavened Bread (Deuteronomy 16:8), and (as here) in Numbers 29:35 (P); Nehemiah 8:18, of the extra day following the seven days of the Feast of Booths, which became -the great day of the feast" (John 7:37). According to 2 Chronicles 7:9 (though not recognised in the parallel, 1 Kings 8:66), it formed a joyful celebration in thankfulness for the completion of the dedication of Solomon's Temple.