The Indiana Jones franchise is entirely about the evolution of religion, if you go through Indy's story chronologically:
Temple: Paganism. Dark rituals, ancient gods demanding sacrifice.
Raiders: Old Testament God, looking out for the Jews, smiting indiscriminately, doesn't care who he hits with lightning (except apparently if you don't look at him)
Crusade: New Testament God, will spare you if you're a good person and understand the teachings of Jesus. However you still better watch yourself.
Skull: New age religion, people finding power from objects like literal crystals.