69 weeks from the "Great Sign" of Revelation Chapter 12 will begin the week of January 20. From Sept. 23, 2017 (when the Great Sign occurred) until Jan. 20 , 2019 is 69 weeks. The 21st is notably the 20th blood moon since 2000 and the end of the metonic cycle.
 
January 20 is also the Jewish Festival of Trees , Tu B Shevat. Man's fall began at a tree. Isaiah declares prophetically that the trees will one day "clap' their hands. Isaiah 55, verse 12.