The authors stress the post-modern idea of relationality as foundational for a doctrine of holiness which is palatable for post-modern thinkers. A project that many would consider a worthy project.
In order to accomplish this aim, the authors turn to 1 John to stress the idea of love as the foundational of the doctrine of holiness. They find an ally in John Wesley. However, the book stresses the aspect of love in 1 John without addressing the aspect of light (holiness). These are the two truths upon which John bases his message (1 John 1:5 and 1 John 3:11). The book seems to avoid the latter (light) in favor of the former (love).
The book deviates from the Methodist/Wesleyan emphasis on the essential nature of God as holiness or holy/love by adopting the idea that the essential nature of God is love. The danger of such a position has been underscored in the Grace, Faith and Holiness by H. Ray Dunning (p. 101ff.) in which Dunning traces the pendulum swing in the history of Christian thought between divine immanence (love) and transcendence (holiness). The teaching of the book is the message of love without an adequate emphasis on holiness. Dunning's emphasis on holy-love as the essential nature of God provides a much more balanced approach than does the book, Relational Holiness. A rather significant theological shift took place in Methodism on this very subject, and Lodahl and Oord's work typifies the pendulum swing in the Methodism toward the immanence of God and away from the holiness of God.
Furthermore, the book over stresses the witness of the Spirit as feeling (p. 103, 113, etc.). An idea that does not seem consistent with the founder of the movement which the authors claim to reflect.
The aim of this book is not scholarly; it is something written for general readership or a popular level. Any review of this book should keep this in mind.