Okay, you two.
This is irrelevant, because you can as individuals do it differently. But if you want to get on a wild ride of what evidence is, then I can do that.
1st level. Is evidence cognitive in brains or independent of brains? Well, simple test. Point to evidence and explain how it is according to external sensory experience? You can't. You will always answer with what you think evidence is. That makes it a norm/standard/procedure to follow for what evidence is.
2nd level. Can the given person do meta-cognition or do the person take his/her/their thinking for granted?
Example:
Someone: I know the universe is physical and not from God.
Someone else: I know the universe is from God and not physical.
Me: I don't have to do either, because one of you are doing something false according to logic, yet we are all 3 in the universe.
The trick I use, is that I notice we are all 3 thinking, notice that we are 3 thinking differently and thus I test if I can think differently and get away with it.
3rd level. "Man is the measure of all things: of the things that are, that they are, of the things that are not, that they are not." - Protagoras.
The first part is in other words, the different ways we evaluate what works.
Overall there are 5 different measures and then combinations for most contexts.
-Objective evidence as per observation/instruments and models made based on that.
-Objective logic as formal cognition in brains and how to do that.
-Inter-subjective norms for how we ought to interact, i.e. the social.
-Individually for how a given human cope; i.e. psychology.
-What happens when someone tries to make sense for all that and makes a model of that; i.e. a worldview.
4th level. For somebody like me, who have done this for close to 30 years including reading a lot of books about how worldviews work according to different models for different standards of evidence, I simply observe what is going on and answer with one of the 5 or a combination for a given context.
So for the dogmatic fundamentalistic theists it works for them subjectively, but it doesn't work for the standard of objective, but as long what they do, is subjective, they can do it subjectively.
And here is the joke for methodological naturalism and biology. They, you and I are variations down to the replication of the fittest genes, but since we are social animals, fittest is also local social environments and how to survive in them.
In other words, we are playing different limited cognitive, moral and cultural relativism for different strategies of in effect the replication of the fittest genes.
Now if you want to do morality in effect as objective as possible and yet still accept it is subjective, I have learned that. But there is no <beep> objective evidence for that in the strongest sense. There are just some norms, that are more universal for the variation of humans and not:
I am right and you are wrong and I have evidence for that.