Who do you think promoted the "original shift in European culture" toward the Judaeo-Christian God in the first place? Hint: it wasn't any of the Protestant churches, because they didn't exist yet, and wouldn't exist for a thousand years after Christianity was made legal in AD 313.
Who do I think? God Himself. And Jesus’ disciples never would have wanted to take any of the credit knowing that they themselves were completely sinfuland unworthy. Moses didn’t enter the Promised Land for one reason, and one reason only: because He “did a work”which gave some credit to himself rather than clearly allowing the people to see that only God Himself deserved their gratitude, awe and worship. “The church” also only refers to all those who have been saved by faith. “Ekklesia” means “called out.”