I never suggested truth needs to be proven scientifically. But there are those who make empty claims and expect you to take their word for it.
Yes that is one of the fallout of modern society who don't put value in a persons word or being honest anymore. A lot of people get caught out. But that doesn't mean that people don't tell the truth and we can trust them. The thing is those who are not truthful usually don't get away with it and are found out. But the truth will stand in the end and we can learn lessons and be confident about that truth.
How do you know Christ is without sin? Because some guys wrote books claiming he was without sin? How do you know those guys were being truthful?
Then we would have to say that everyone from Jesus to the witnesses, and disciples to all the non-biblical people and events all being lies. That means Jesus or whoever lied has fooled the world. They are all deluded or liars. Now I know that people can be deluded and lie about all sorts of things usually for self gain. But what benefit would there be for this hoax.
We know that something pretty significant happened that changed our world and reality a little over 2,000 years ago by a man named Christ. I think where there's smoke there's usually fire. There has to be some truth as this impact has lasted and when its a scam or some crazy person, Charles Mason comes to mind there are telling signs eventually.
Ahh so it’s all about faith huh? My problem with faith is that there is no means of establishing the truth.
That's because you are narrowing what truth is down to empirical measures. As you have acknowledge there are truths that cannot be tested by the science method. We use faith with just about everything in some ways even when it comes to science.
Science can tell us that the world is made of matter but it cannot tell us what that matter is, what ultimately caused it and what it represents in the greater scheme of things. But by claiming that reality is only made up of matter science is actually making an ontological claim about reality and that's beyond science and a metaphysical position.
Do you know the biggest difference between the truth and a lie? From my experience, the truth never asks to be believed; that’s what lies do. The truth asks to be tested. The truth wants to be picked apart, studied, analyzed, the truth wants to be verified! Because once you’ve done all of that; belief comes natural.
All the methods you mention to measure the truth can be described as science measures. But as you have acknowledge there are different ways of finding a truth. Like we couldn't test, analyze, pull apart love.
Imagine testing and analyzing your partner to see if they loved you and have been faithful. I don't think the relationship would last long. But many people believe their partners love them and are faithful without any scientific support.
We can study and analyses the color red and find out all the physical processes involved. But that doesn't explain how we experience red. Yet it is true that we have conscious experiences of colors. But we cannot test for this.
I disagree that the truth never asks to be believed. I think we have all seen people protesting an injustice calling out for the truth sometimes for years. Dylan wrote a song about it with the song Hurricane. I don't think liars and the guilty can maintain any false declaration of truth as they don't even believe themselves and it eventually comes out in one way or another.
Though we can be mistaken I think we are pretty good at discerning the truth most of the time because that is what allowed us to live as a society.