How do we decide what is right and what is wrong?

Tim Keller, Albert Mohler, and Collin Hansen discuss the proper basis for making moral evaluations. Consider Keller’s point at the end. If the premise, “there is no god,” leads to a conclusion, “then there is no such thing as right and wrong,” then why not re-examine the premise?

What Is Morality Other than Harm? from The Gospel Coalition on Vimeo.