Venerable Thais of Egypt, the penitent who became a great ascetic.
Thais was a woman of Alexandria who lived a life of sin until the abba Paphnutios came to her disguised as a customer and spoke to her of the judgment of God. Struck with compunction, she burned her possessions in the public square.
She was enclosed in a cell in a women's monastery for three years of repentance, and tradition relates that a vision showed her forgiveness; she reposed in peace soon after.
Feast day
On the New Calendar, Thais of Egypt is commemorated on October 8. Churches on the Old (Julian) Calendar keep the feast on October 21 of the civil calendar.
Who celebrates a name day
People with these names keep their name day on this feast:
Also commemorated on October 8

Pelagia the Virgin of Antioch
Holy Woman, Πελαγία η Παρθένος
Holy Virgin Martyr Pelagia of Antioch, who chose death rather than dishonor.
Ignatios the New Martyr of Bulgaria
Martyr, Ιγνάτιος ο Οσιομάρτυς
Holy New Monk-Martyr Ignatios of Stara Zagora, hanged at Constantinople in 1814.
Tryphon of Vyatka
Venerable, Τρύφων της Βιάτκα
Venerable Tryphon, Archimandrite of Vyatka, wonderworker of the Russian north.
Philip of Gortyna
Hierarch, Φίλιππος επίσκοπος Γορτύνης
Saint Philip, Bishop of Gortyna in Crete, apologist of the second century.