It depends. Not all of the bands I would say are preachy. Crimson Thorn and Horde are a bit-hellfire and brimstone-avoid it type thing. Paramaecium are more of storytellers. Exhumed of the Earth is more or less a concept cd telling the story of Christ and his early followers. Mortification and Vengeance Rising have done both, but both bands have some pretty well written lyrics. Some of their songs surpass some death metal bands gore lyrics when they talk about the crucifixion (Paramaecium's The Killing and Mortification's Ancient Prophesy come to mind), except they are not doing it to praise violence but more to impart the reality of what happened.
