The truth is that we cannot know what the truth is. We can engage in textual criticism on the various texts, we can form various hypothesis as to what was believed or said by various groups for various reasons, but none of these things establishes the truth of either what the texts themselves originally said, whether these individuals (whomever these might have been) accurately recorded what actually occurred, or even if these things which might have been accurately recorded were ever true statements when these things were being spoken, said or done.
What can be said is "This is what I'd like to be true, these are the reasons I'd like these things to be true and these are the reasons I have for supporting actions which suggest that these things are true."
We can discuss:
1. Why I want these things to be true.
2. What evidences I'm putting forward to submit for examination.
3. Why I feel that I can honestly act in fath on these things being an accurate reflection of truth.