14th century Byzantine Greek cleric and theologian
Gregory Palamas (Greek: Γρηγόριος Παλαμᾶς; c. 1296 – 1359) was a Byzantine Greek theologian and Eastern Orthodox cleric of the late Byzantine period. A monk of Mount Athos (modern Greece) and later archbishop of Thessalonica, he is famous for his defense of hesychast spirituality, the uncreated character of the light of the Transfiguration, and the distinction between God's essence and energies (i.e., the divine will, divine grace, etc.).
https://en.wikipedia.org/wiki/Gregory_Palamas
Gregory Palamas (Greek: Γρηγόριος Παλαμᾶς; c. 1296 – 1359) was a Byzantine Greek theologian and Eastern Orthodox cleric of the late Byzantine period. A monk of Mount Athos (modern Greece) and later archbishop of Thessalonica, he is famous for his defense of hesychast spirituality, the uncreated character of the light of the Transfiguration, and the distinction between God's essence and energies (i.e., the divine will, divine grace, etc.).
