Is Immorality Only that which Harms Others?
A common defense of “sexual liberty” is that it is limited to the private conduct of consenting adults — in other words, it doesn’t “harm” anyone else. Similarly, a frequent retort to opposition to the normalization of homosexual ‘marriage’ is “what marriage was harmed by this homosexual union?”
Dr. Albert Mohler and Pastor Tim Keller have a fascinating discussion on this topic in a panel for the Gospel Coalition:
The discussion is long (16 minutes), but it addresses some very relevant points in a clear and concise way.