There are a couple of ways to find articles that focus on the religious, moral, and ethical aspects of your topic.
The first method is to add additional keywords, like "moral," or "ethics," or "Christian," to whatever search you're doing. ERIC applies the subject terms "Moral Issues" and "Ethics" to articles that deal with the ethics or morality of education. So, you can add the string ((DE "Moral Issues") OR (DE "Ethics")) to any search to find articles that address morality or ethics--like this search for peer-reviewed journal articles in ERIC that use the terms (DE "Moral Issues") OR (DE "Ethics")) AND (DE "Special Education").
PsycINFO uses the subjects "Ethics," "Morality," and "Values." As with ERIC, you can add those terms to your search to focus it, like this: (DE "Ethics" OR DE "Morality" OR DE "Values") AND (DE "Special Education").
The second method is to do a search for your topic in a religion database.