We read of the Jesus Christ's Transfiguration when he is transformed and becomes gloriously radiant upon the mountain. Saint Luke writes in Luke 9.28b-32, "Jesus took Peter, John and James with him and went up onto a mountain to pray. As he was praying, the appearance of his face changed, and his clothes became as bright as a flash of lightning. Two men, Moses and Elijah, appeared in glorious splendor, talking with Jesus. They spoke about his departure [Greek "exodos"], which he was about to bring to fulfillment at Jerusalem. Peter and his companions were very sleepy, but when they became fully awake, they saw his glory and the two men standing with him."
As the men were leaving Jesus, Peter said to him in Luke 9.33b-35, "'Master, it is good for us to be here. Let us put up three shelters - one for you, one for Moses and one for Elijah.' (He did not know what he was saying.) While he was speaking, a cloud appeared and enveloped them, and they were afraid as they entered the cloud. A voice came from the cloud, saying, 'This is my Son, whom I have chosen; listen to him.'" Apparently, Peter did not know what he was saying and although his motives were good he misunderstood the supremacy of Jesus over the others.
Luke 9.36 continues "When the voice had spoken, the disciples there found that Jesus was alone. The disciples kept this to themselves, and did not tell anyone at that time what they had seen." In the Transfiguration, we see that Jesus was not considered equal to Moses and Elijah but superior to them and that his Heavenly Father confirmed this in the hearing of the chosen disciples by calling him, "My chosen son."