Venerable Luke Abbot of Batheos Ryako

Luke was a Byzantine monk and the third abbot of the monastery of Batheos Ryako, the "Deep Stream," a community dedicated to the Transfiguration of Christ that stood near Triglia in Asia Minor. He entered the monastery as a monk and in time was raised to its leadership as igoumen. According to the synaxarion he reposed there in peace at the end of the tenth century. He is commemorated on September 7, and is distinct from Luke the Evangelist.

The monastery of Batheos Ryako lay at Triglia, which the sources place in Bithynia on the southern shore of the Sea of Marmara, in the region broadly known as Asia Minor. It was famed for the strictness of the ascetic life of its monks. Founded in the first half of the tenth century by Saint Basil, who is commemorated on July 1, the house was led after him by a second abbot and then by Luke, so that he stands third in a recorded succession of monastic superiors.

Luke's commemoration on September 7 is preserved in the Hagiologion of Metropolitan Sophronios Eustratiadou; Saint Nikodemos of the Holy Mountain records an alternate date of December 27. Little beyond his office, his community, and the manner of his repose is related of him in the surviving notices, and the profile keeps to what the synaxarion and the associated sources support.