God’s glory in us is the basic provision for Christian unity. “I have given them the glory that you gave me, that they may be one as we are one: I in them and you in me. May they be brought to complete unity to let the world know that you sent me and have loved them even as you have loved me” (John 17:20-23).
The primary assumption in this book is the authority and inspiration of the Scriptures. There are promises, prayers, and commands in the New Testament concerning the church’s unity in Christ. The Christian church is made up of individual members of the body of Christ. This book is written to those individuals. The church as a whole cannot obey God. Only the parts can.