Soteriology
What was a rule for living I tested extensively?
I don't know. You didn't tell me. You provided no concrete examples, remember? But I see that you have done so below:
Christ stated that "Love your neighbor as yourself" was one of the 2 great commandments (on how to live life). I found this as an atheist reading various great thinkers about how to live life better. I realized I could test this rule out, actually find out whether it worked better than other ways, or less well.
So, some minor disagreements.
The principle of reciprocity comes from many disparate sources. Jesus was a late arrival to that scene.
Also, I think that
do unto others as they wish to be done unto is a far superior position, morally speaking.
Love your neighbor as yourself is too centered on the self. Not to say that it isnt positive. It could just be better.
My standard way to live for many years (in many places) had been to choose a few select friends, 1 to 3 people, and focus entirely on them, and keep all other people at a polite distance. I tried the rule with my immediate next door neighbors on both sides, and the results were far better than anything I imagined possible. I thought I was lucky, and continued to test it over and over in new situations and places, trying to find any situation where it would fail to produce good results. It has always given surprisingly good results, to my benefit. Better than the other ways of relating to most people I'd tried. So, that's experimental see. You'd need no faith at all to try it. You'd need a curiosity or scientific attitude or something to help motivate you.
Sure. I went through much the same with similar good results. I just moved into a new apartment last month, and COVID is proving quite the barrier to casual introductions.
But all that being said..what is your point? If you recall, in my original response to you, I agreed that some of the edicts, commandments, tenets and laws found in the Bible are not immoral. And I agree that the principles of reciprocity, while not perfect, are among that moral subset. But there is so much that is not. From the story of the fall to the false salvation of the doctrine of soteriology. All of the immoral edicts of God in the Bible (slavery, misogyny, stonings, genocides, etc), and the unrelenting culture of believers to try to handwave it all away.