To paraphrase Larry Norman, “Why should the Devil have all of the [heavy metal]?”
Thus is the guiding principle that founded Stryper, who were young Christian rock and roll fans who loved heavy music but hated all of the debauchery and occultism that pervaded much of the lyrics.
It’s certainly not a unique story (see also: Resurrection Band, Petra, Larry Norman again, the Christian music machine in general), but To Hell With the Devil is maybe the most emblematic distillation of the ethos of what Christian metal is. And it does so without compromising on either their Christian faith or their metal riffs.
It worked too: it went Platinum, spawned numerous hits on MTV, and remains one of the most important albums in the genre.