https://www.mljtrust.org/sermons-online/acts-8-5-12/principalities-and-powers/

Rebellion against God takes many forms. While some reject all notions of religion, more often rebellion shows up in substituting a belief system in place of the gospel of Christ. In the sermon “Principalities and Powers,” Dr. Martyn Lloyd-Jones exposes false faith as he shows how modern day humanity turns to the failed faiths such as new age mysticism, eastern religions like Buddhism, in rejection of the only true God. Humanity’s instinct for faith refuses to be satisfied with the God of the Bible. Dr. Lloyd-Jones shares from Acts 8:5–12 how the gospel goes to Samaria as the apostles encounter Simon the magician. He used his so-called magic to make a great name for himself and to win the adoration of the people but he is shown to be an evil man who uses false religion to deceive people and lead them astray. This deceptive and demonic kind of false spirituality that Simon the magician used is no different from the many spiritualistic religions of the modern humanity. Both reject true Christianity and use spiritualistic practices, whether it be magic or drugs, and both are ultimately false religions. This is why the church of today must be clear and bold in its witness to the truth of the gospel of Jesus Christ as the only means of salvation from sin and death.