Back when I was in grad school in Chicago, I flew back and forth a lot between Chicago and Seattle. One Christmas I was flying home to spend Xmas with my folks, and in O'Hare there was a high school choir singing Christmas carols while I was waiting to board my plane. They sang tolerably well, but what I noticed most was the faces. Some were totally deadpan, some had a "my Gawd what am I doing here I could be anywhere else" look, and some seemed truly happy and joyful.

I don't know if the happy and joyful faces were the believers or not. But they were delightful to behold, whereas the others really dragged the music down just by their facial expressions.

Moral: If you're going to sing gospel songs with a long face, don't bother. If you can truly enjoy what you're singing, and bring joy to your performance, then this Christian doesn't see why you shouldn't sing 'em.

Alex