I'm Baptist and I've been wanting a tattoo of a cross for a long time. Just recently I was told getting a tattoo is against the bible and is a sin. Is this true if it is a symbol of your religion and showing your faith? If I were to get it, it would be the only tattoo I would ever want and it would be on my upper arm where nobody could see it unless I had my shirt off.

And if it is a sin, would god forgive me for getting it even though it is permanent?

Although I don't attend church on a regular basis like I should, I prey every night before bed and always ask god for forgiveness for my sins and thank him for a list of things.

All opinions and help are welcome, thanks :)