The study of religion and the nature of god. The Theologist is an expert on philosophies concerning god and his relation to the universe. He is knowledgeable about religious philosophy, doctrinal revelations of god, ethical behavior and instruction, the afterlife, and pneumatology. He is very familiar with religious history, the significant founders and figures of the leading religions, proselytism, didactics, and the effect of religion on society. He also studies different religions and their comparative beliefs. In some cultures Theology can also be the study of an entire pantheon. Those drawn to this study usually specialize according to their own religious beliefs.