In Old Testament times owners marked their slaves by piercing the earlobe with an awl (Deu.15:17). In jails it is common practice to be marked with tattoos to show which gang a prisoner belongs to.
Paul says: "From now on, let no one cause me trouble, for I bear on my body the marks of Jesus." (Gal.6:17). With these words the Apostle declare himself a slave of Jesus Christ, fully committed to the cause of the Gospel. What about us? Do our lifestyles mark us as "gang" members of Jesus Christ, permanent slaves of the Gospel?