This is a tremendous celebration ordered by the Lord through Moses to all of Israel for all of time.  Leviticus 23:33-44, Deut. 16:13-16.  All of Israel was to come up and appear before the Lord.  It is called the feast of His appearing.  It is the harvest festival and American Thanksgiving was patterned after it.  Yeshua appeared during Sukkot and shook up the religious establishment.  John 7:14-39.  Friday, September 29 at sundown begins the 7 day celebration. On the final day the High Priest would gather water from the pool of Siloam and cry out Isaiah 12:3. "Therefore with joy you will draw water from the wells of salvation."  Yeshua stood and said; "If anyone is thirty, let him coe to Me and drink.  He who believes in Me, as the Scripture has said, out of his heart will flow rivers of living water.  John 7:37-38.   Let's pray for the harvest.  Let's seek His face and pray that He will be in our midst during this season of the year.