This is the same review I left on Amazon.
Hidden In Plain View: Undesigned Coincidences in the Gospels and Acts by Lydia McGrew
I really enjoyed this book. I had heard about undesigned coincidences before, and I wondered why, in light of the fact that there were supposedly so many of them, the same ones kept being brought up in talks, blogs, and interviews by various people. Now I understand. It's because there's only a handful of them that actually amount to undesigned coincidences. The rest of them seem to have more to do with the creativity of the author (whether Lydia McGrew, William Paley, or whoever) than with there actually being an undesigned coincidence.
Let me give two examples. One is a compelling undesigned coincidence, and the other doesn't seem so to me. These are right next to each other in the book.
The first is on page 85. In Matthew 10, the twelve apostles are listed in pairs, e.g. Simon and Andrew, James and John, Philip and Bartholomew, etc. Mark 6 says that when Jesus sent the apostles out to preach, he sent them out in pairs. Lydia thinks this is an undesigned coincidence because Mark explains why Matthew lists the apostles in pairs the way he does. If this argument is sound, then supposedly Matthew pairs them up according to who traveled with whom. But this seems like a stretch to me, and I see no reason to think the sending of the twelve in pairs has anything at all to do with why Matthew lists the twelve in pairs. Granted it's possible, but I think you need more than mere possibility to use this as historical evidence of some real event. You'd have to have some good reason to think one thing actually IS the explanation of the other thing before this argument would work.
But suppose I'm wrong, and it does indicate some historical reality. What would that reality be? That Jesus sent the apostles out in two's? Or that the pairings in Matthew correspond to who traveled with whom? I don't see how. Maybe the apostles were paired up for some unknown reason, and if we knew that reason, it would explain both why Matthew would list them in pairs and why Mark would say that Jesus sent them out in pairs. But we can't really know what that historical reality is, so even if this is an undesigned coincidence, we couldn't draw any historical conclusions from it, at least not with any confidence. You can't say that A explains B when there's a possible C that explains both A and B independently of each other, especially when it's far from obvious that A is actually the explanation for B.
The other undesigned coincidence is on page 87. In Matthew 14, Herod hears news about Jesus and tells his servants that he thinks Jesus might be John the Baptist risen from the dead. Then in Luke 8 we find out that one of Jesus' followers is the wife of one of Herod's servants. So that explains how we know what Herod said to his servants. What makes this an undesigned coincidence is the fact that Luke was not trying to explain anything about what was said in Matthew 14, yet it's hard to think of a better explanation of how this information ended up in Matthew. How could anybody have known what Herod said to his servants in private unless his servants relayed it to other followers of Jesus?
That strikes me as being a good example of an undesigned coincidence. Now the question arises whether Lydia's book has more examples like that first one or like the second one. I didn't keep count, but my guess is that it's about 50/50. So I rounded up and gave Lydia 3 stars. Besides, I think it's a very valuable book even if not everything said in it was persuasive. I gave her an extra star because the book is really well written and a pleasure to read.
Lydia said somewhere in the book that we shouldn't expect every example to be compelling. Her hope was that the cumulative effect would present a strong case for the reliability of the gospels and Acts. But I don't think examples like that first one contribute anything to the cumulative case. As William Lane Craig once put it, "Two bad arguments don't make a good argument." With enough creativity, I think somebody could probably come up with all sorts of examples of undesigned coincidences that aren't really there, but the only way they really count in a cumulative case is if we have good reason, and not mere speculation, that one thing explains another thing in an unintended way. We do have that in the second case above, but not in the first case.
Thanks for writing this book, Lydia. Somebody needed to write this book. I hope that through the process of natural selection (or peer review if you prefer), we'll weed out the bad arguments and hone the good ones.