St Emilian the Confessor: he was one of the first bishops to denounce the iconoclast Emperor Leo the Armenian for his heretical intrusion into theological matters. He eventually died in prison. We also must be willing to face opposition when confronted with enemies of our Faith.

http://oca.org/saints/lives/2015/08/08/102229-st-emilian-the-confessor-bishop-of-cyzicus

http://images.oca.org/icons/sm/august/0808.emilian.jpg