In the Old Testament law book of Leviticus 19:28 it commanded the Israelites: “Do not cut your bodies for the dead, and do not mark your skin with tattoos. I am the Lord.” This verse actually is referring to the prohibiting of pagan rituals being performed over the burial of the dead.
Tattoos are not a recent trend. It dates way back to the ancient Egyptian civilizations. Many ancient people have had tattoos as a custom.
In the New Testament there is absolutely nothing being said about the fact that Christians cannot have tattoos or body piercings. This is for the simple reason that when Jesus Christ died on the cross and rose from the dead, He ended the system of law with its commandments and regulations. (See Ephesians 2:15)
The only thing the Bible says is that whatever you do, do it all for the glory of God! (See 1 Corinthians 10:31)