It is prophesied that when Jesus comes back, riding his white horse in front of the celestial armies, he will have “King of Kings,” and “Alpha and Omega” inscribed upon his legs. To a man of John’s time, that is essentially the description of a tatoo. Furthermore, we can consult Augustine’s “City of God,” in which he states “Therefore, if the body be defiled, but the soul remain pure, there is no danger.” However, it is perhaps also significant to note that when St. Augustine said that, he was particularly referring to women who had been raped durring the sack of Rome by the Mongols. None the less, if taken slightly out of context it becomes an interesting notion.
The reason for tatooing being against the Bible truthfully has little to do with the physical engraving in the sense of a corporeal fashion. I could carve a line down my arm, and The Lord would not damn me. Therefore, neither would a series of curves and lines which make up a figure be damning. Far more important, I believe, is the thing which the symbol in question represents. For fathom this: There are many symbols that men and women have tatooed upon them which are taken from various religions. Of importance is any spirit of demon attached intellectually or celestially to that symbol, whether the individual in question know it or not. Of more significance even is the fact that in the process of drawing the tatoo, blood is drawn, and therein is the most damning thing of getting a tatoo: That in the process, you make a blood pact with the tatoo artist and any spirit associated to that tatoo. Being as a blood pact already binds us to Jesus, I do not believe a tatoo of The Cross would be too bad, assuming particularly that you did the tatoo yourself. However, a tatoo of any symbol attached to another entity other than Christ is a divergence from Jesus’ blood pact with us, and therein a violation of The New Law.
Note: I do not personally have any tatoos, in case it appeared as if I were defending myself.