Cults

Cults is a branch of Apologetics, where apologetics is a defense of the Bible position, and cults is a revelation and study of unbiblical systems.

Here there are separate sub-categories for Catholicism, Jehovah’s Witnesses, Mormonism, Islam, Calvinism, etc. Note after extensive study of Calvinsm and growing up with it, I see it as a cult, not as orthodoxy.