The Theological Debate
According to the OCA Synaxarion, the Persian king Iamame arranged a theological debate between Muslims and Christians and invited Christodoulos to take part. Christodoulos debated the king himself and prevailed.
A pagan astrologer was then brought forward to take the king's place as interlocutor, but he too proved unable to match the philosopher. Finally a renowned scholar was summoned, yet Christodoulos again prevailed, drawing on his command of both Scripture and the Koran and employing his skill in logic and rhetoric.