It has always amazed me how few christians actually know the name of they're christ. Even the word christ is not a name ,but a title (Christos)GREEK. A title many of his contempories claimed . Jesus never was called JESUS in his life . Je-sus = Je (GREEK) GOD + SUS is latin for Zues i.e. Jesus = (God is Zues a title .) J .C.'s real name was (yesuwha) hebrew name.This name was never part of the hebrew Torah Emanuel was the name of messiha given by Issac, J.C. was never called Emanuel.So when your Jesus friends claim that they" know they're God";Tell them they don't even no they're Gods name.