Rettoujin no Maken Tsukai: Skill Board wo Kushi Shite Saikyou ni Itaru - Vol. 3 Ch. 42 - The Faithful of Earlgard

[MangaDex]

 

[KyuubiUzumaki]

I feel like a Lost Person introduced that concept and the churches adopted it Probably had a skilled liar skill and convinced them that the gods wanted this development to happen.