I grew up in Christianity. At one point, I had to know for myself what I ought to believe. I settled for what the resurrected Jesus told His disciples: "Teach the nations to observe the things whatsoever I have commanded you".
Lay no treasures up for yourself on Earth.
Sell the earthly treasures you have.
Give to people who can't pay you back.
Treat people the way you want to be treated.

That last one needs explanation. All of us need others to work with their hands. We need servants to grow food, make clothes, deliver water, build houses, and work cheap. Since that's the way we want others to behave toward is, we should return the service.
No one needs a guy who spends all his time talking - telling us how we ought to treat him.