The Church Fathers identified Jews and Judaism with heresy. They saw deviations from Orthodox Christianity as heresies that were essentially Jewish in spirit. Tertullian implied that it was the Jews who most inspired heresy in Christianity: "From the Jew the heretic has accepted guidance in this discussion [that Jesus was not the Christ.]" Saint Peter of Antioch referred to Christians that refused to venerate religious images as having "Jewish minds".
Try to answer this question if possible (otherwise reply "unanswerable"): What religion were these Fathers of the Church?
Orthodox Christianity