Morality comes from social norms and the way our brains are wired. There are certain things we naturally know are wrong. As to where it stems from, that would be God.
Unfortunately that is what the unbelievers think. Us believers know God personally and have had supernatural experiences with him. We know he is real with 100% certainty. It is up to you to find God and open your heart up to him. We are not losing anything.