[T]o hold to the revealed Word of God as the norm for the principles of the church and to observe the course on which the church was set in its foundational period is the only hope of building on a firm base. This work was written to explore these basic principles revealed in the Scriptures. The first five chapters are primarily concerned with the church universal in its nature as a living organiism vitalized by God's own life, its Pentecostal inauguration, and its purpose and place in the program of history. The four remaining chapters look at the pattern of the organized church, including its ministry and worship.