Oh, ffs. You want to have sex with a woman. Is forcing her to have sex with you moral?
You want your neighbor's land. Is killing him to get it moral?
Your friend has lunch money, and yours was stolen by a bully you were too cowardly to punch in the face. Is it moral for you to steal from your friend?
What is moral? That's the problem with people like you. Apparently, you're a sociopath, and you have no idea what's moral without laws and governments to contain your impulses?
Where does it come from? It comes from common sense. Don't force your will on others. That's not a complicated thing to understand unless you are a sociopath.