St. Demetrius was a commander of Thessalonica during his life and remained so after his repose. People have felt his presence in Thessalonica, especially in times of great calamities. He protects the city, wards off misfortunes, repels invaders, and helps all who invoke his name. Here is a wonderful example of his unusual aid to people in need. Once, the barbarians attacked Thessalonica and were unable to overtake it. Infuriated at this, they pillaged the countryside and bound and carried off two beautiful maidens whom they gave as a gift to their prince. These maidens knew how to embroider well. When the prince saw their handiwork, he said to them: “I hear that there is a great god in your land, Demetrius, and that he works great miracles. Embroider his face on this linen.” The maidens told him that St. Demetrius was not a god but rather God’s servant and the helper of Christians. At first, they refused to embroider the face of the saint, but when the prince threatened them with death, they carried out the command and completed the task by St. Demetrius’s Day. On the eve of the feast, they looked at their embroidery and wept sorrowfully, as they had to spend the feast day in slavery and had to give that embroidered image of their beloved saint to an impious barbarian. Both maidens prayed to St. Demetrius to forgive them. Then St. Demetrius appeared to them and took them both away, as an angel had once taken the Prophet Habakkuk. He brought them to Thessalonica and set them in his church. A solemn all-night vigil was being celebrated, and many people were there. When they learned of the miraculous rescue of these Christian maidens, all glorified God and St. Demetrius, His great servant and commander.

The Prologue of Ohrid