Believing Colenso’s book on the Pentateuch to be illogical and unsubstantiated but gaining in unwarranted popularity, John Cumming felt compelled to write Moses Right and Bishop Colenso Wrong because he worried that uneducated men and “young persons especially ignorant of the facts of the subject in discussion are apt to be misled and deceived.” An assailment of Colenso’s scholarship, Cummings refutation of Colenso’s methodology is carefully elucidated.