In my experience, a lot of "devoutly" religious people are like this.

I grew up Independent Fundamental Baptist (westboro, but less vocally homophobic) and my dad told me a few years ago he secretly kept a stash of alcohol in the garage while he was quite aggressively teaching that the Bible expressly forbade consumption of alcohol that could get you drunk because of a long argument that basically amounts to "Paul said so." (The proper response to that is "fuck Paul", obv. Paul was an asshat.)

You can twist anything into anything if you try hard enough, and they're really good at it.