another interesting gray area, imo, is the longer ending of Mark, and the first part of John 8...
should they be in the Bible?
I wouldn't really see this as a gray area, but rather an area dealing with the manuscript evidence we have, one which we must decide if we believe this passage should be considered Inspired.
I personally think that it should be included, primarily because manuscripts lacking this portion do not necessarily create a position that we can dogmatically state no manuscript ever did.
And I think the controversy that surrounds this passage is one which usually applies to doctrinal distinctives of certain groups when they seek to use them to proof-text doctrine and practice. The question is...is there something within this passage that contradicts the Word of God elsewhere, which is the basis for rejecting something that is presented as Inspired.
I don't see anything that contradicts Scripture elsewhere, myself, and seeing that I will be judged according t my conscience in regards to my view of the passage, for me I don't have a problem accepting it as Inspired. If I am wrong, that doesn't mean that God will punish me for that view, unless I violate my conscience on what I see it as teaching. If I do violate my conscience, then I have no expectation but to be judged according to that.
And that still takes us back to presenting what is thought to be a gray area. Do you see something in this passage that presents a gray area? Or is it the passage itself alone you feel is the gray area? As I said, I don't see that as a gray area, because if one rejects it as Inspired due to a lack of manuscript evidence, or perceived disruption of the thoughts of the Writer, then for them it is a settled issue. To see the inclusion as a gray area would, I would think, also be a settled issue, or at the very least, something that one can come to a determination eventually.
If I take that passage and create doctrine which does conflict with other teachings of Scripture, then that is not a gray area either, I am violating a very simple principle, in that all of our doctrine has to agree with all points of Scripture, because Scripture does not contradict itself.
God bless.