Everyone, Morte et Dabois Latin indeed, I have Latin in school btw, et means also, dabo is the futur of give, morte is death. I will also give you death!
That's what it means, in other words, 'i will kill you'.
Ben said in their latest interview that it isn't really their thoughts about christians etc. It was just something that they thought that would be cool. Their other songs also don't have this subject. There not satanic or something like that. Its just a one song subject project what they thought that would be cool. And it turned out to be one of the best songs off the album! Its no big deal.
Every song by them is awesome btw, going to see them the 30th of april!