Investigating the meanings and uses of "spiritus" in a variety of early modern disciplines and fields - natural philosophy, theology, music, literature and the

In The Unseen Realm, Dr. Michael Heiser examines the ancient context of Scripture, explaining how its supernatural worldview can help us grow in our understandi

The truth about demons is far stranger—and even more fascinating—than what's commonly believed. Are demons real? Are they red creatures with goatees holding

Dr. Michael S. Heiser presents fifteen years of research on what the Bible really says about the unseen world of the supernatural, unfiltered by tradition or by