There is only one Christian religion and it is the Church of Jesus Christ of Latter-day Saints and all other churches worship a being made fashioned in the image of man. Christ is only known through the Holy Ghost. Even if he were on the earth today that would be as true now as it was in his day. Peter knew Jesus was the Christ because the Father revealed it to him through the Holy Ghost, and Peter could not have known it except by revelation.
Truly those who are born of the spirit are like the wind. The world hears the sound thereof. They see the works that these people do. They see their outward actions. But, just as they don't know where the wind came from or where it is going, they don't know whence these actions come from, or where they are headed.
Christ is only known and worshiped in the Church of Jesus Christ of Latter-day Saints because it is only possible to know him through the Holy Ghost, and that is only found in his true church. All other churches worship a different being and give him the same name. But they have not the spirit that would teach them who he really is by revelation, and so they can do nothing but worship a God made after the image of their own ideas about him.