A concise text which presents the Scriptural and Patristic teaching of the Church on the angels, the devil, demons, and evil. Written in the context of holy tradition in the clear and concise language that has made his classes among the favorites of his students, Prof. Boosalis explores questions related to angelic freedom, their ranks and participation in worship, the role of demons in intrusive thoughts, and the presence of evil and suffering.
Harry Boosalis is professor emeritus of Dogmatic Theology at St. Tikhon's Orthodox Theological Seminary.