P. Adam McClendon focuses on Christian spirituality and its role in the Christian community and Christian life in Paul's Spirituality in Galatians. Let's look at what McClendon has to say about his purpose for this volume.
In his introduction, McClendon says that the book's goal is to "model" a particular approach to Christian spirituality "by applying a particular passage of Scripture as a corrective guide governing aspects of Christian spirituality." In other words, sometimes Christian spirituality has taken strange turns, but it should be limited by the Bible "in determining what is and is not of the Spirit of God."
McClendon focuses especially on Galatians 2:20, which is about living in Christ and allowing Christ to live within oneself. Paul continues, "And the life I now live in the flesh I live by faith in the Son of God, who loved me and gave Himself for me" (NRSV). This, according to the author, should be the foundation of spirituality. It can help correct errors of "personal subjectivism and misinterpretation of the Scriptures" and guide people in Christian living. McClendon goes on to explain how the book will be organized around the four parts of the verse.