At least since their first book, The Psychological Way/The Spiritual Way (copyright 1979), the Bobgans have opposed the psychotherapy that has crept into the "church" and found a stronghold in the minds of many. For many years now, Martin and Deidre have been calling Christians to reject the psychological opinions of men, and to believe in the sufficiency of the Word of God and the work of the Holy Spirit. Over the years, the Bobgans have written several books with this theme.