okay sO for elder church's whole backstory thing,,
he was fifteen and basically ran out of options for what to do with his dad so he got desperate and turned to more desperate measures which included uHHhh contacting a crossroads demon!!
he gave up his soul to a crossroads demon in exchange for his dad leaving, and the contract was SEALED woohoo! but at the price of his soul, which he promised to the demon in ten years
once his dad left (haven't decided whether hell interpreted that as killing him or not), church and his mum were slowly recovering from YEARS of trauma, until church realised he messed up and turned to mOrmonism as a sort of way to ignore the fact that he'll soon die and suffer eternal damnation
this kinda means that elder church later becomes a demon (another one, yay!)
this also means that his first kiss was probably with that crossroads demon!!! rip to this kid i guess