Steven Sewell Prince of the Kingdom of Persia withstood Gabriel coming to Daniel 21 days. Michael came to help him. Sept 21 + 21 days = Oct 12/13, 2017. 8th Day, Solemn Assembly. This 21 day “delay” may be the heavenly battle going on right now to cast Satan and his angels out of Heaven in preparation for the resurrection/rapture on the last great day.