The Bible teaches that believers are under the law of Christ, which law is written by the Spirit in their hearts and in the Scriptures in order that they might live to the glory of God. So David Gay asserts. In recent years, however, some teachers have begun to argue that believers are not under the law of Christ, and that, although believers must obey the Scriptures, the Scriptures are not an integral part of that law. Some even teach that there is no such thing as progressive sanctification. Moreover, emphasising the work of the Spirit beyond scriptural warrant, they get close to 'Let go, and let God'. If this teaching gains ground, Gay fears that the long-term consequences will be very serious indeed. Consequently, he has published this book in the hope that it might help to maintain biblical teaching on these vital aspects of the new covenant.