From the story here:
As for St. Paul, he is referred to [in ISIS' latest magazine issue] in turn as a “criminal” and “treacherous Jew” who “intentionally sought to deviate the monotheistic Nazarenes in order to tarnish Jesus’ name – even if it meant Paul’s own persecution.” The Holy Trinity being an essential concept of St. Paul’s writings is a form of polytheism, according to Islamic State jihadists, one intended to deceive Christians. ... [T]he “debate between Trinitarians and Unitarians reached the heights of popularity during the fourth century of the Christian calendar.”
