In Eastern Orthodox Christian theology, the Tabor Light (Ancient Greek: Φῶς τοῦ Θαβώρ "Light of Tabor", or Ἄκτιστον Φῶς "Uncreated Light", Θεῖον Φῶς "Divine Light"; Russian: Фаворский свет "Taboric Light"; Georgian: თაბორის ნათება) is the light revealed on Mount Tabor at the Transfiguration of Jesus, identified with the light seen by Paul at his conversion.
As a theological doctrine, the uncreated nature of the Light of Tabor was formulated in the 14th century by Gregory Palamas, an Athonite monk, defending the mystical practices of Hesychasm against accusations of heresy by Barlaam of Calabria. When considered as a theological doctrine, this view is known as Palamism after Palamas.