The Bible talks a lot about evidence and self-deception. My favorite passage to go to is Matt 12:38-40. The Pharisees and Scribes ask Jesus for a sign. But here is the kicker: Jesus had been doing signs, in fact, the Pharisees had previously conspired against Jesus because he healed a man on the Sabbath. (Matt 12:13-14) And then Jesus heals a man who was blind and mute, and the Pharisees said that Jesus was casting out demons by the prince of demons.(Matt 12:22-24) So, the issue with the disbelief of the Pharisees was not a lack of miracles, it was their evil heart. They did not want to believe.
One of the triumphs of postmodernism is that it has shown us that we are not rational, unbiased observers. The modern man used to think that he was something like a scientist in a lab coat, adding a few drops of red to a small pitcher of blue and “poof!” Purple. Turns out that the world doesn’t work like that. I mean the cause and effect part, not the colors part.
None of us are unbiased, we don’t dispassionately look at evidence and follow it where it leads. Instead, we find where we want to go, and we accumulate evidence that will take us there. Why does Fox news not sound like MSNBC? Do they use different cameras? No, we are masters at changing evidence to fit what we want to see.