Even if not religious, I feel one would still love this film, given its sets, early Technicolor usage, and camerawork. The story is told slowly/methodically, which may turn off newcomers to silent cinema. I always recommend people watch silent comedy first by Lloyd, Keaton, Chaplin, etc first before delving into other silent fare. Once you're used to the art form, its hard to turn back. A beautiful film. Essential.
I saw this at the New York State Fairgrounds in Syracuse, with original musical accompaniment on a 1925 Wurlitzer organ. This film is slow-paced, but that gives the audience time to take in the massive sets, sweeping action and amazing costumes. Consider a budget colossus for decades, its $3.9MM in 1925 equates to only $52.3MM in 2014 dollars.