One of the things I have really enjoyed about BSF this year as we study Revelations is that we have also looked at the prophesy throughout the bible. Joel is a tiny book at the end of the Old Testament that had some gems worth journaling. 
As I've said before one of the cries of my generation is for people who are authentic. This verse I feel completely encompasses what I desire for the church. To rend means to rip apart savagely. So this verse means to tear apart your insides not just your garments or what everyone sees.
