Invariably, I will be referred to Gleason Archer's massive Encyclopedia of Bible Difficulties, a heavy volume that seeks to provide the reader with sound explanations for every conceivable puzzle found within the Bible - from whether God approved of Rahab's lie, to where Cain got his wife. (Note to well-meaning apologists: it's not always the best idea to present a skeptic with a five-hundred-page book listing hundreds of apparent contradictions in Scripture when the skeptic didn't even know that half of them existed before you recommended it.)