St Dorotheos became Bishop of Tyre in Phoenicia about the end of the third century. During the persecution of Diocletian and Maximian, about the year 303 AD, he fled to Odyssopolis in Thrace to preserve his life, and after the death of the tyrants he returned to Tyre. He lived until the reign of Julian the Apostate (361-363 AD), from whose persecution he again fled to Odyssopolis (or, according to Theophylact of Bulgaria, Edessa), but was found by Julian's men and slain in great torments, at the age of 107, in 361 AD. He was very learned, and has left behind writings in both Latin and Greek relating the lives of the holy Prophets, Apostles, and other Saints.
As a sharer of the ways and a successor to the throne of the Apostles, O inspired of God, you found discipline to be a means of ascent to divine vision. Wherefore, having rightly divided the word of truth, you did also contest for the Faith even unto blood, O Hieromartyr Dorotheos. Intercede with Christ our God that our souls be saved.
Kontakion. Third Tone
On this day the Virgin
Having preached the Orthodox doctrines, O most sacred Martyr, you brought yourself as a divine gift to you Creator; at the first, you had excelled in asceticism; at the last, you did contest firmly as a Martyr, and did lawfully receive the prize of you victory from Christ our Saviour and God.