The Unseen Realm (Expanded Edition): Discovering the Supernatural World of the Bible

by Michael S. Heiser

New edition of a bestseller (over 175k copies sold) that features more content from Michael S. Heiser To celebrate its tenth anniversary, The Unseen Realm Expanded Edition features a deluxe hardcover format and new content from Heiser never before available in print, further unveiling the unseen realm.

730 pages, Kindle Edition

Published October 1, 2025

About the author

Mike Heiser is a scholar in the fields of biblical studies and the ancient Near East. He is the Academic Editor of Logos Bible Software. Mike earned the M.A. and Ph.D. in Hebrew Bible and Semitic Languages at the University of Wisconsin-Madison in 2004. He has also earned an M.A. in Ancient History from the University of Pennsylvania (major fields: Ancient Israel and Egyptology). His main research interests are Israelite religion (especially Israel’s divine council), biblical theology, ancient Near Eastern religion, biblical & ancient Semitic languages, and ancient Jewish binitarian monotheism.

Mike blogs about biblical studies at The Naked Bible, and fringe beliefs about the ancient world at PaleoBabble. He offers courses to the public in Old Testament, biblical theology, Israelite religion, ancient languages, the Book of Enoch through his online institute, MEMRA.

Mike's other academic interests include the paranormal and the occult. His UFO Religions blog discusses how the pop cultural belief in aliens shape religious worldviews. Mike has been a frequent guest on a number of radio programs such as Coast to Coast AM. He is best known for his critique of the ancient astronaut theories of Zecharia Sitchin and his paranormal thriller, The Facade, which intertwines many of his interests.

Reviews

[Robert · Rating 5 out of 5]

Very good. This gives a lot more Biblical backing to Meredith Kline's ideas about a divine council. It also makes the Presbyterian continual complaint about using Goliath as a metaphor tenuous when it points out that one of David's brothers also killed a giant named Saph in 2 Samuel 21. It is a good reminder to bear in mind Alan Jacobs warning to be wary of mythology and terministic screens that sift out parts of the Bible which are considered "weird." Presbyterians may relegate some of these occurrences using a more sophisticated version of the word like "metaphorical." It amounts to the same thing: ignoring things that do not fit neatly into a theological framework but sit slightly outside it and are not considered much. Evidence for demons mating with human women is considered as literal and actual and not just symbolically and metaphorical is given a fairly thorough analysis. He also analyzes why it appears that the book of Jude references First Enoch in this regard.

[JL Mars · Rating 3 out of 5]

I have so much respect for Michael Heiser as an academic and a human being, and my 3-star rating is reflective of the very high esteem in which I hold him and this behemoth of an academic work. That said, I was expecting far more "supernatural" and far less theology from this book based on the hours of lectures I've watched him give. It read far more like an apologetics/theology textbook and far less like his video content/lectures led me to believe. Again, I have nothing but respect and admiration for his legacy and his work, but unfortunately this extensive, respectable tome was not relevant to my research.

[Tyler Kroenke · Rating 3 out of 5]

Definitely worth the read. I basically agree with Heiser’s exegesis of Psalm 82, Genesis 6:1-4, and Deuteronomy 32. This is the main point of the book. At times, I disagreed with his methods and found his rhetoric to be a bit sensationalist. I’m unsure how much the local ANE context can be used to understand the Bible. This will require more reflection.

However, it’s hard not to respect him as a man who loves the Holy Scriptures and wants to teach them in their fullness, even when they are counterintuitive and weird.

[Joel Wentz · Rating 5 out of 5]

Very, very good. An improvement on the original edition, both in content and in design. I still have some unanswered questions, but this is an outstanding book that carefully and clearly defends its main arguments.

Full video review here: https://youtu.be/Z2hTwpcTzeY

[Kalyn Barrick · Rating 4 out of 5]

Very interesting book. Gives some context to a couple of references that are difficult to understand. Not sure I agree 100%, but it’s a good place to start and provided some good questions that one could follow up on.

[Darryl L. Rowe · Rating 5 out of 5]

Outstanding!

Should be required reading throughout the Church. Including best application principles and teaching the material to others and getting the most out of the material.

[Brooklynn Felix · Rating 5 out of 5]

10/10.