St. Demetrius of Thessaloniki
As excerpted from Orthodox Wiki.
Icon of St. Demetrius of Thessaloniki
The holy, glorious and right-victorious Great-martyr Demetrius of Thessaloniki the Myrrh-streamer (also Demetrios) is one of the most popular saints in the Orthodox world. He was martyred around the year 306 in Thessalonica (Thessaloniki), and his popularity rapidly grew during the Middle Ages, when he was regarded as the first recognized patron and protector of the city, militarily as well as spiritually. His feast day is celebrated on November 8 (old calendar). The Serbian Orthodox Church commemorates the Saint as a Mitar having a feast of Mitrovan on November 8.
The Saint’s Life
Demetrius came from a noble family of the Roman province of Macedonia. Through this noble ancestry and through his own ability and virtue he rose to a high military position under Galerius Maximian, Caesar of the Eastern part of the Roman Empire (with Diocletian as the Augustus, or senior emperor). Despite this position in the still-pagan empire, he remained fervent in faith and works for Christ, encouraging many Christians to endure persecution and even bringing many pagans to the faith.
When Maximian returned from one of his campaigns to Thessaloniki, which he had made his capital, he had pagan games and sacrifices celebrated for his triumph. Demetrios was denounced by pagans who were envious of his success, and he was thrown into prison. While in prison he was visited by a young Christian named Nestor, who asked him for a blessing to engage in single combat with the giant Lyaios (or Lyaeus), who was posing as the champion of paganism. Demetrios gave his blessing and Nestor, against all odds, slew his opponent in the arena, as David had once defeated Goliath.
The enraged emperor, learning that this had occurred with Demetrios's aid, first had Nestor beheaded outside the city and then had Demetrios impaled in prison. Later Demetrios's servant Lupus was beheaded after using his master's blood-stained tunic and signet ring to work many miracles. The Christians buried Demetrius and Nestor next together in the bath where Demetrius had been imprisoned. During the seventh century a miraculous flow of fragrant myrrh was found emanating from his tomb, giving rise to the appellation Mirovlitis, the Myrrh-Gusher to his name. His tomb containing his relics is now in the crypt of the Church of St. Demetrios in Thessaloniki.
St. Demetrius is revered as the patron saint of Thessaloniki and is believed by the people as having intervened to save the city over the years from invading foreigners, from Slavic nations, Bulgarians, Arabs, Saracens, and others. While well remembered in the Hellenic world, the memory of the Great-Martyr Demetrius of Thessaloniki found an attachment in Slavic nations.
Popularity in the sixth century
Extreme popularity for Saint Demetrios is first attested in the sixth century. It grew because of his miraculous interventions in defense of the city during the many sieges it endured during the early Middle Ages, particularly by Slavic tribesmen who overran the old provinces of Hellas and Macedonia during the sixth through eighth centuries. His cult was centered around the basilica that bears his name in Thessaloniki, which contained a ciborium which acted as a cenotaph, since his relics had not been found. Later his relics were found and confirmed through their miraculous outpouring of myrrh -- hence the saint's epithet of "Myrrh-streamer."
He is depicted in earlier images in civilian aristocratic garb of the late Roman Empire, and in later iconography as a Byzantine soldier. Because of his military protection he is often paired with St. George of Cappadocia, another great military saint. They are usually depicted on horseback, with St. Demetrios spearing a man (perhaps Lyaios, or one of the pagan Slavs whose assaults he warded off from his city), while St. George spears a dragon. The saints are both youthful and unbearded, by can be distinguished by certain characteristics, including hair style and the colors of their garments and horses.
Nestor, Demetrios's protégé, is commemorated the day after Demetrios, on November 9.
Troparion — Tone 3
The entire world has found you to be a great champion in times of peril; / for you put the heathen to flight, O victorious one. / As you brought to naught the boasts of Lyaeus, and gave courage to Nestor in the stadium, / in the same way, O Holy Great Martyr Demetrios, / entreat Christ God, that He grant us great mercy.
Kontakion — Tone 2
(The Original Melody)
God, Who has given you invincible strength, Demetrios, / has adorned the Church with the royal purple of the streams of your blood, / and has kept your city unharmed, / for you are its support.