A Christian is a person in whom Christ lives.
Yes. And Christ's holy temple has a Holy Inhabitant. Any religious claim in this era to a man-made temple is a profaned temple. A cleansed temple and a Pure Priest is required to operate inside this God-made temple. That man-God priest is Christ, who operates alongside the Holy Inhabitant.
Anyone embracing man-made temples should flee that faith at once and hold on to the Holy One inside.