Many of these reference articles come from Wikipedia, a public online library of information. Some have been prepared by Wikipedia in PDF format with internal links and many appended references. In others, most internal links and appended references have been removed for readability, but a link to the original article (in a line below the article's title) allows you to make use of that reference material.

Wikipedia is not a "faith based" source but it does adapt a policy of neutral point of view (NPOV) for all of its articles. That means that all content cannot promote an opinion or belief but must provide source references for all points of view represented. This can be valuable for both informing your own beliefs and understanding contrary or unfamiliar beliefs of others.