Robinson wrote several well-received books. The most popular was "Honest to God" published in 1963. According to "Exploration into God" in (1967), he felt its chief contribution was its attempt to synthesize the work of theologians Paul Tillich and Dietrich Bonhoeffer, both of them well known in theological circles, but whose views were largely unknown to the people in the pews. The book proved contentious because it called on Christians to view God as the "Ground of Being" rather than as a supernatural being "out there". The modifications of the Divine image posited by Robinson have some aspects in common with the psychological deconstruction of God-ideas put forward by his fellow Cambridge theologian Harry Williams in his contribution to the symposium "Soundings" edited by Alec Vidler and published in 1962. When that book was being produced, Robinson was not asked to contribute, because he was then thought to be too conservative a New Testament scholar. This view has never quite dissipated, for in his later books, Robinson would champion early dates and apostolic authorship for the gospels, largely without success, although in recent years the liberal Baptist theologian and spiritual writer John Henson has claimed some affinity with the idea that the Fourth Gospel was the earliest.