This book is basically a thorough study and commentary of the newly discovered Gospel of Thomas (in 1945, but only published recently), the first such in English. Its chief value, as the authors point out, is to show how the Gnostic religion, the early rival of Christianity, both understood and misunderstood Jesus and his gospel, for this gospel is almost surely based on The Gospels. It shows how the Gnostics tried to pervert Christianity by remaking Jesus into their own image, testifying not to what Jesus said but to what men wished he had said. The authors at some length show how the 4 Canonical Gospels were shaped, taking into account the influence and pressures which were accommodated or rejected as they did or did not correspond to the criterion of the real Jesus whom they knew. They also give us comparative glimpses of other gnostic writing to show when and how the Gospel of Thomas fits into the whole scheme of things. It is a most carefully written study; not too abstruse for the reader who is above the average in his curiosity and knowledge of the nature of the rock upon which Christians may stand more securely with each new discovery. The authors make the point clearly without violence to the evidence.