Christ took his disciples Peter, James, and John up to Mount Tabor to pray. When they arrived, Christ's face began to shine like the sun and his clothes became as white as snow. The brightness that emanated from him was meant to reveal his divinity to his followers. Moses and Elijah appeared at his side, the one to denote the Old Law of the Jews and the other to represent the prophets who foretold the coming of Christ. At the same time, the voice of God was heard to proclaim Christ as his son. With this, the Passion was foretold. The scene was depicted by Fra Angelico in 1438-1445 in one of the monk's cells in the San Marco Monastery, Florence. The most famous Transfiguration is Raphael's version in the Vatican Pinacoteca (1517), moved above his tomb in the Pantheon in 1520, the year when Gerard David painted his version, now in the Church of Our Lady, Bruges.
Historical dictionary of Renaissance art. Lilian H. Zirpolo. 2008.