The central purpose of the text is to unite, in a single compendium, analysis of all the Bible myths which bear resemblance to earlier tales. Doane's system is practical; the myths are recounted, examined and compared against their apparent forebears in chronological order. The purpose is to demonstrate that religions share much in common with one another; while their themes and the names of figures change, the character of the tales and legends remains similar or even identical across centuries of lore.
At the outset, Doane acknowledges that very little of this book is entirely original; what is special and unique to this work is its arrangement, and the systematic, readable manner in which the subject is tackled. Each chapter is amply annotated, that the reader may consult both the Bible and surviving texts of other religious works, plus previous scholarly researches into ancient mythologies.
Perhaps most controversially, Doane focuses upon the tale of Christ. His birthplace, the events in which he was involved, the subject and message of his sermons, and his untimely death upon the crucifix are shown to mirror aspects of previous stories concerned prophets or holy men of other religious traditions.