Mysticism is dangerous because it undermines the authority and sufficiency of Scripture as well as the biblical teaching on justification.
The only way in which God can be known is through His self-revelation. Man cannot get to know God through his own effort. God reveals Himself to man because of the covenant that He made with mankind. In this article the author highlights some modern threats to gaining this knowledge of God; namely, agnosticism, skepticism, rationalism, and mysticism.
This is the first article in a series on various doctrinal issues facing the church today. Here the author evaluates the claim that God gives believers today special revelation, Working from the history of mysticism and Quakerism, the author shows how this claim undermines the sufficiency of scripture.