Seems to be a Christian liberty issue to me. As for calling attention to oneself, I find this hard to believe if it's hidden. If it's not hidden, what if it's a Bible verse, or some other "worthy" tattoo? If not, the person may just like the way it looks. I would not automatically assume someone is trying to attract attention with a tattoo - there are too many other reasons to have one.

I personally have none, but I don't think it's by any means sinful.

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Mason
Member, Redeemer Presbyterian Church (PCA)
New York, NY

"Come now, and let us reason together," says the Lord, "Though your sins are like scarlet, they shall be as white as snow; though they are red like crimson, they shall be as wool." - Isaiah 1:18