It works with any in-group shibboleths. If you talk like them, use their distinctive language, it subconsciously inspires trust. Works for political partisans as well as it does for religious adherents. Religion differs only in that it actually comes out and explicitly tells you to be uncritically trusting of their source materials and leaders.
This is why many pyramid schemes like Amway and DoTerra are explicitly Christian and do a lot of recruiting in churches btw.