Can you be a practicing Jew and also believe that Jesus is the messiah? The customary answer is no. Though Christianity began as a Jewish sect, it quickly became an all-gentile affair. Indeed, Christians came to understand themselves as people who by definition were not Jewish and who believed that Christianity had “superseded” Judaism—that is, “taken its seat” of favor before God. The word “Jew” came to mean those who had denied Christ, even murdered him, having been unable to see their own scripture’s clear prediction of his coming.