[tremon]

The German wikipedia page does (https://de.wikipedia.org/wiki/Bildung#Begriffsbildung):

> Der Begriff Bildung wurde von dem mittelalterlichen Theologen und Philosophen Meister Eckhart in die Deutsche Sprache eingeführt. Er bedeutete für ihn das „Erlernen von Gelassenheit“ und wurde als „Gottessache“ angesehen, „damit der Mensch Gott ähnlich werde“

The term Bildung was introduced in the German language by the medieval theologist and philosopher Father Eckhart. To him, it referred to "acquiring through inner peace" and was considered godly: "so that man can become more like God".

(excuse my German reading skill, it's not as godlike as I'd like it to be)

That said, the equivalent Dutch word is "vorming", which translates literally as "shaping", so I don't the concept itself is religious in nature. As alluded (but not explicitly said) on the English page, I think the word lost its religious connotation by Humboldt's inclusion in his education model.