The Jesus Seminar is a mainstream liberal group of scholars, and they tend to call Thomas "The Fifth Gospel." So, it's kind of precious to say that it has been ignored by TPB in Biblical scholarship. The Seminar also made a crack at separating the core from the accretions, the fruit of which is available here,
www.webpages.uidaho.edu...
Their method is disputable, but it probably gives you some idea, I believe, about what the earliest Thomas might have been like, or at least parts of it.
I agree with SorensDespair that it was uncanonical because
Then who would need the Church...?
Although the killer verse, I think, is 113 (rated as pink by the Seminar, Jesus probably said something like this)
... the Father's kingdom is spread out upon the earth, and people don't see it.
Talk about not needing a Church.
RPG
You also agree that a current and universally accessible kingdom was a problem for including Thomas in the canon. As to Jesus as the Messiah being "left out" of Thomas, we don't really know whether it was. If our most complete text has accretions, then it may have omissions as well. In any case, one interpretation of Jesus teaching a present-tense Kingdom is that Jesus is saying that the Messiah has arrived.
As to Mark, a few things need to be straightened out:
Chapter 16 is generally thought to be OK through verse 8, and that may have been about where the original ended. If your Bible doesn't document at least two versions of what, if anything, comes after 16:8, or at least some acknowledgement of the problem, then you might want to buy a new, more modern Bible.
Mary and Jesus' brothers are mentioned at Mark 3: 31.
There is no birth narrative in Mark. However, the "empty tomb" is in all versions of Mark 16. Since Mark probably comes later than Paul's genuine epistles, which do have the Resurrection, the reference is obvious.
Mark's Jesus doesn't require baptism and faith, as you say. This makes sense, since Jesus wasn't a Protestant or any kind of Christian at all.
Mark's Jesus doesn't say that you can do miracles; he says that his disciples can - but even that comes in the part of chapter 16 which you've righteously disputed. It's probably an addition based on, say, 2 Corinthians 12: 12, but the disciples are depicted as actually working miracles in Mark 6: 13, during Jesus' lifetime.
Mark's Jesus does say the two commandment thing, at 12:28-32, but he is quoting the Hebrew Bible, Deuteronomy 6: 4-5 and Leviticus 19: 18. In other tellings of the tale, it is the other person who tells this to Jesus. Either way, the teaching wasn't peculiarly his.
and the rest is one way of saying it.


. The Jesus Seminar is soaking wet, and they love Thomas. The Fifth Gospel isn't
canonical, but read critically, it is mainstream.