What is the main conflict in Who Wrote the Bible? by Richard E. Friedman?

Friedman uses a direct and approachable tone. He avoids dropping into pedantic lectures crawling with archaic terms, and when he uses jargon specific to his field, he tries to define what he means. This frees the reader to concentrate on the arguments that Friedman presents, which he does so in a logical movement from specific knowledge to conclusion. Where the known facts do not lead to a clear understanding, he admits to not knowing exactly who did what. Never does he stridently insist that the reader uncritically accept an idea.