Some people may believe that their conscience is enough to guide them not to lie, be deceitful or do the other things God has commanded us not to do. I disagree.
At their core, when things really matter, people see a need to turn to God for strength and protection.
People who don't believe in God may have their own way of justifying some bad act they have committed.
But if we get to the point where more people do not believe in a God than who do believe in God, we will have a hollow legal system - we will have something without heart.
Singing still brings me tremendous joy, the reception you get and you never know what people are going to share with you after the event.