The basis for morality is the Bible of course.

Before I read it, I was raping and killing people right left and centre, but apparently these things are bad....who knew?

Oh and I almost forgot, I used to do a lot of coveting, pretty much 24/7 I'd sit around coveting stuff...that's bad too.

Regret.

If you really don't see how I think of it as a basis for morality and ethics then, I'll go to the effort of building a logical statement. :)

I don't know about marality,

But morality stems from empathy, which believe it or not is a natural human instinct. One with a functional frontal lobe, or who has not endured massive abuse which has for intents and purposes shut off this part of the brain, naturally put themselves in another's situation.

It is a result of evolution that we do this, since individually we are too week an animal to survive the wild, but as a group, like dogs or monkeys, we have more brains than our natural predators and prey, and so we survive.

If we did not have empathy, which has become morality, we as a species would have died long ago. The average male is 160lbs of good meat eatin' for a tiger or bear, yet that 160lb human can be torn limb from limb by an 80lb chimp in a matter of seconds. Never mind the short amount of time it would take a real predator to kill even a UFC champion. We need morality to survive.

The basis for morals and ethics is religion, as "good" and "Evil" and "right" and "wrong" are all terms that came out of religion.