St. Nicodemus was born Nicholas Kallivourtzis c. 1749 in [[Metropolis of Paronaxia|Naxos, Greece]]. According to his biographer, he was possessed of "great acuteness of mind, accurate perception, intellectual brightness, and vast memory", qualities which were readily apparent to those who furthered him along in his learning. He passed from the tutelage of his parish priest to that of Archimandrite Chrysanthos, who was the brother of St. Cosmas Aitolos. From there he made his way to Smyrna (now Izmir, Turkey), where he studied at the Evangelical School. Here he studied theology, as well as ancient Greek, Latin, French, and Italian. Persecution from the Turks, who ruled the Greek world at the time, cut his schooling short, and he returned to Naxos in 1770. He studied at Smyrna but was forced to abandon his studies during a time of Ottoman persecution.
In 1775 he became a [[monk]] of [[Dionysiou Monastery (Athos)|Dionysiou]] on [[Mount Athos]]. Upon being tonsured a monk, Nicholas' name was changed, as is the custom for those who had abandoned the world, to Nicodemos. He was initiated into the practice of hesychia, a method of prayer involving inner stillness, controlled breathing, and repetition of the "Jesus Prayer" (Lord Jesus Christ, Son of God, have mercy on me, a sinner). Nicodemos aligned himself with the monks known as Kollyvades, who sought a revival of traditional Orthodox practices and patristic literature, and he would spend the remainder of his life at work translating and publishing those works. He would also compose many original books of his own. He labored for restoration of the practice of Saturday commemoration services, for patristic ecclesiology, and generally for a synthesis of
akribeia (adherence to traditional principles and canons) and oikonomia in Orthodox practice.
St. Nicodemus reposed in the Lord on July 14, 1809, and was [[glorification|glorified]] by the Orthodox Church on May 31, 1955. He is a local saint of the [[Metropolis of Paronaxia]] and the [[Mount Athos|Holy Mountain]]. His [[feast day]] is celebrated on [[July 14]].