I am a Christian, and I have no musical talent, just to let you know where I’m coming from. I used to be an atheist, so I can relate to that, too. I can’t, though, relate to singing in a gospel choir as an atheist.
Most people I know who sing gospel or other Christian music think of it as primarily a spiritual expression, less a musical performance. The saying is “make a joyful noise unto the Lord,” so it’s about your spirit, not your talent. I can totally understand an atheist performing religious music as part of a musical performance, but just can’t see it as relates to being in a gospel choir. If I were in such a choir, as a Christian I’d assume my fellow singers were also in it for the spiritual expression. I’d have a hard time figuring out why an atheist was there. An agnostic/Unitarian, it would be easier to understand–they believe maybe in something, but are not sure it’s Jesus/God. So they are there to experience and seek. But if you are sure that there’s no God, to me it would just be strange. Kinda like the white suburban “homeboy” rappers, the impression that they are not being themselves.
As a Christian I feel bad not encouraging you to hang around Christians, but if you do join the gospel choir, don’t act surprised that we really believe, and most will encourage you to stay, in the hope that someday you will believe, too. It reminds me of this joke –
A fox came to a river and upon arriving met a scorpion. The scorpion was wanting to cross the river but would drown if he tried, so he asked the fox if he could ride across the river on his back.
The fox said no way. If I take you out there and you sting me I will drown. The scorpion said if I sting you we will both drown so why would I sting you.The fox said you have a good point, so I guess I will take you.
The scorpion hopped on his back and they headed across the river, but halfway across the scorpion stung him. The fox said why did you do that, now we will both drown. The scorpion said I can’t help it. It is in my nature.