That leaves us with the moral law, which did not disappear with the sacrifice of Jesus. The next question is to what extent the moral law carries into the church age. If you hold to a dispensational view of scripture, you believe that only if the aspects of the moral law were ratified in the Gospels and Epistles are they applicable to the church in the present age. For example, Jesus and Paul confirmed Old Testament teachings on matters such as theft, sexual morality, and honoring your parents. On the other hand, they did not confirm the aspects of the moral law such as keeping the Sabbath in the manner the Jews did. If the New Testament did not confirm such aspects the moral law as prohibition against tattoos or cremation, it may be considered not covered by the New Covenant.
While these aspects are not covered in the Epistles or the Gospels, the Apostle Paul did state that the body is the Temple of the Holy Spirit. Therefore, defacing the body with tattoos or piercings violates the concept of being such a temple. It also could be argued that cremation represents a violation of the concept of the body as a temple. However, all human bodies will decay as a matter of nature. Some argue that deliberate cremation is a denial of the bodily restoration of the deceased in Christ that will occur in the end times.
Excellent post.
Thank you.