We don't need God to be good.
The objection, in full
Secular societies (Sweden, Denmark, Japan) score higher on every measure of human flourishing than religious ones. Empathy, evolutionary kinship, social contract — all explain morality without divine command. Many religious people behave terribly; many atheists are kind.
I don't believe in God and I'm not a murderer. So there.
or, in plain terms —I'm a good person without religion. End of story.
I knew what was right and did the wrong thing anyway.
I stole pears not because I was hungry — we threw them to the pigs. I stole them because the theft itself delighted me. The atheist account of morality cannot explain why I knew, even as I did it, that I was tearing something in myself.
Our hearts are restless. We do not need to be taught that we have failed; we are taught only the name of what we have failed against.
You have made us for yourself, O Lord, and our heart is restless until it rests in you.