Venerable Paul the Obedient.
Venerable Paul is remembered for his perfect monastic obedience. Tradition relates that at his elder's command he thrust his hand into a burning furnace and was unharmed, and that he reposed in peace after a life of humility.
Feast day
On the New Calendar, Paul the Obedient is commemorated on December 7. Churches on the Old (Julian) Calendar keep the feast on December 20 of the civil calendar.
Also commemorated on December 7

Athenodorus of Mesopotamia
Martyr, Αθηνόδωρος
Holy Martyr Athenodorus of Mesopotamia.
Name days: Athinodoros, Athenodorus
Gregory of Grigoriou
Venerable, Γρηγόριος ο Σιναΐτης ο Ειρηνικός
Venerable Gregory, founder of the Monastery of Grigoriou on Mount Athos.
Ammoun of Nitria
Venerable, Αμμούν ο της Νιτρίας
Venerable Ammoun, founder of monastic life in the desert of Nitria.