and he was pretty good. His book is not overly technical, but it's not overly simplistic, either.
The subject has to do with variant passages in the Gospels, and trying to determine the original version. One of the most famous examples is the voice from heaven which follows Jesus' baptism by John. Most translations read "You are my Son, in whom I am well pleased." A smaller number say "You are my Son; today I have begotten you."
It is highly liklely that the second is the original. However, it suggests an adoptionist Christology, meaning that Jesus was a human being whom God adopted at a certain point in his life. That conflicted with the view of Jesus that came to be commonly accepted, namely that he is part of the Trinity and existed in divine form before he was born. As a result, the wording of Gospel had to be changed.
If that type of thing interests you, you will probably like the book.
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As far as the Dead Sea Scrolls go, they are absolutely fascinating documents, but I personally find them difficult to read. Some of the material is esoteric; some is concerned with day-to-day workings of a religious community; some are Psalms. Some is fragmentary and has a part of each line missing. The significance is not always apparent to the layman.
When selecting books about the Dead Sea Scrolls, it helps to understand the controversies surrounding the documents and the author's place in those controversies. The official version is that the DSS were produced by an ascetic religious community at Qumran who lived in the 2nd century BC and is almost irrelevant to the development of modern Judaism or Christianity.
That interpretation has come under attack archaeological, theological, and historical grounds. Some scholars like Norman Golb ("Who Wrote the Dead Sea Scrolls?") argue convincingly that the DSS were written in Jerusalem by a variety of authors and moved to Quram to protect them during the Roman assault in 66 AD.
Robert Eisenman, who fought for years to make the original scrolls public, argues that the "Teacher of Righteousness" described in some of the documents is
James the brother of Jesus. That is a minority view, and carbon dating suggests those documents may be earlier. However, he brings to bear a vast array of almost unknown material in order to make his case, and his book is absolutely unique and invaluable from that point of view (I have read it twice). His picture of Jesus and the early Church is almost unrecognizable from the books of Acts, but has much to recommend it.
There are other popular books, such as Michael Baigent's
Dead Sea Scroll Deception, which support Eisenman, but develop further the links between the original Jewish followers of Jesus and later groups like the Essenes, Nazirites or Nazarenes.
Personally I love this stuff even though I'm no longer a religious person. But it leaves many people cold.