“Can you be good without believing in God?” is a different question than “Can you be good without God?”
Clearly, an atheist can do good things and abhor certain evil things.
But can an atheist make a case that some things are inherently good, and other things are inherently evil?
Or is Richard Dawkins correct, when he states that the universe is a place of “no evil and no good, nothing but blind, pitiless indifference?”
This video, from ReasonableFaith.org, lays out the basics of the moral argument for God’s existence: