Bias - prejudice in favor of or against one thing, person, or group compared with another, usually in a way considered to be unfair.
What is wrong with promoting something you believe to be true? That is not bias Leroy.
Also, if that were the case, that would make you biased, when you made your OP.
Bias, is as defined. If you are choosing to do something, just because you are in disfavor with something else - not because you view it as wrong, but simply because you are prejudiced against it.
Did the writers do that? If you answer in the affirmative that places the burden of proof on you, to demonstrate that they did that.
What's your answer?
Information that is too good to be true? From whose perspective?
If the majority view is that something is too good to be true, as opposed to the minority view, that does not mean the majority view is correct. Are you in disagreement with that?
I don't understand that.
Someone's limited understanding does not make something "too good to be true".
Millions of scientists do not think miracles, or the concept of a creator God, is "too good to be true".
I don't understand that Leroy.
People will disbelieve, no matter how strong the evidence is, for something they don't want.
Okay, so your use of the word bias is different to what I understand, and what the dictionary says.
That definition is not bias. Perhaps you are thinking of skeptical. Or perhaps wary... but not biased.
Also, you are thinking of the perspective of persons considering historical documents. Not the writers themselves.
So you have no evidence of bias on the part of the writers. You are looking at our own biases, which yes, does interfere with our view of evidence from investigation.