Scottie Clarke puts together a visual treat for Christians trying to grasp the coming importance of the Blood moon tetrads that will occur in 2014-2015. His point in this presentation is to challenge the current calendar depictions of the accepted dates for the Feast of Trumpets. The guess among Bible Prophecy students is that the Feast of Trumpets will be associated with the Rapture of the Christian church. So getting an accurate understanding of how feasts were set based on the lunar cycles will add to a better grasp of scripture related to the rapture.
I am linking to my first post on the blood moon tetrads and the appointed feast dates that Scottie covered in his first video on this topic below: