Bishop of Beth-Seleucia, he was known for the number of converts he brought to the faith. Denounced for interfering with the Persian star worship, and suspected of treasonous collaboration with Roman authorities, he was arrested in 339. Tried before King Shapur II, they were given the chance to save themselves by denouncing their faith; they declined. Martyr.
- “Saint Isaac of Beth-Seleucia“. CatholicSaints.Info. 20 November 2016. Web. 24 January 2017. <>