Twenty-five years among remote tribal groups taught John Cross and his colleagues that when the Bible was presented from creation to Christ, it made profound sense. They understood and believed.
As John traveled around the globe, he realized that many of those he met were much like the tribal people—they too knew nothing about God. So he wrote a book using the same biblical approach that proved so effective with tribal people—one that could be given away or used to guide people to a clear understanding of the Gospel.