EXTREME COROLLARY: Worn Through the Layer of Separation: Harvest East Coast Apocalypse Tour 2012

Admittedly, this is quite a stretch, as to my knowledge no members of Harvest, past or present, have been practicing Christians while playing in the band, but they are a 1990s-era hardcore band, and I do remember hearing reliable stories about them having been courted by Tooth and Nail, and I also remember them playing shows with the occasional Christian hardcore band, but mostly they're really nice guys and worth seeing if you're into the heaviness.  The picture below is sure to seal the deal one way or the other.

Photo borrowed without permission from 1000knives.com.