Sukkot is an interesting feast, one of the three pilgrim festivals that required every Jewish male to journey to Jerusalem.
Even more interesting is the connection made by Zechariah of this festival and blessing under the new covenant.
This is a new covenant passage. The water that flows from Jerusalem is the gospel going out into the world This is a companion text to Ezekiel chapter 47.
So what does Zechariah mean when he says that all nations shall go up to Jerusalem to observe the feast of booths, or they will receive no rain?
Many bible teachers insist on making a literal application of such passages, but a thorough study will convince that this is talking about trusting God for salvation. Abraham was looking for a city that has foundations, whose builder and maker is God. The writer of Hebrews gives us a glance of the heavenly Jerusalem. where Jesus is presently reigning. He began His reign when He ascended into heaven at the time of Pentecost, and sent the Holy Spirit upon the Apostles at the beginning of the gospel proclamation. The water went forth from Jerusalem, and where it went and was received, it produced life.