Someone in my family no longer believes Jesus Christ is God because of their recent belief of Messianic Judaism. According to my family member, Jesus is the Jewish Messiah and is the Son of God, but isn't God. Well, I believe there are different variations of Messianic Jews, but the Messianic Jewish community, in the USA, which my family member has been learning from and attending does seem to deny the deity of Jesus Christ. Does anyone have any advice on how I can proceed to help that person? I'm already praying for this issue, but I guess I can further help by theologically explaining key texts which these Messianic groups misinterpret to deny Christ's deity. Every time I appeal to New Testament texts, my family member always says Rome corrupted the New Testament. Obviously, I disagree, even though I never studied textual criticism.