Beryllus of Bostra
Beryllus of Bostra  (fl. c. 222–235) was a bishop of Bostra whose writings are lost but is mainly remembered for denying the pre-existence of Christ, and also for dynamic Monarchianism, the denial of Christ's independent divinity. According to Eusebius he was among the "learned churchmen" (Hist. eccl. VI, 20) of the period. His writings and letters were held in the library established by Alexander of Jerusalem, but have not been preserved. Historical theology knows Beryllus. Origen disputed with Beryllus at the Councils of Arabia regarding Monarchianism between 238 and 244 and appears to have persuaded him, though he may have retained his view on pre-existence. Beryllos offers an early example of the heretical beliefs Hellenic Christians imputed to the Arabs as a race.

See also 

 Theodotus of Byzantium
 Paul of Samosata
 Artemon

References

3rd-century Syrian bishops
People of Roman Syria
3rd-century people