De or het christologie?

The correct Dutch article is:

de christologie

Rule Words ending in -logie: always de. See the rule
Meaning (Dutch) (religie) theologie van de persoon van Christus

How to use christologie

the christologiede christologie
this christologiedeze christologie
that christologiedie christologie
our christologieonze christologie
your christologiejouw christologie
every christologieelke christologie
which christologie?welke christologie?
a big christologie / the big christologieeen grote christologie, de grote christologie

Meaning, plural, diminutive, pronunciation and translations: WikiWoordenboek (Dutch Wiktionary) (CC BY-SA 4.0). Example sentences: Tatoeba (CC BY 2.0 FR).