Demons—in spite of their relentless hostility to God—are essentially sound in key aspects of Christian theology. Scripture reveals a demonic horde well-versed in Christology, eschatology (Matthew 8:29), and ecclesiastical authority (Acts 19:15). James exclaims, “Even the demons believe—and tremble!” (James 2:19, NKJV). When James points out that reality, he is warning his readers not to …