First Reading
Daniel 7:9-10, 13-14
As I watched, Thrones were set up and the Ancient One took his throne. His clothing was snow bright, and the hair on his head as white as wool; His throne was flames of fire, with wheels of burning fire. A surging stream of fire flowed out from where he sat; Thousands upon thousands were ministering to him, and myriads upon myriads attended him. The court was convened, and the books were opened. As the visions during the night continued, I saw One like a son of man coming, on the clouds of heaven; When he reached the Ancient One and was presented before him, He received dominion, glory, and kingship; nations and peoples of every language serve him. His dominion is an everlasting dominion that shall not be taken away, his kingship shall not be destroyed.
Second Reading
2 Peter 1:16-19
For we did not follow cleverly devised myths when we made known to you the power and coming of our Lord Jesus Christ, but we were eyewitnesses of his majesty. For when he received honor and glory from God the Father and the voice was borne to him by the Majestic Glory, “This is my beloved Son, with whom I am well pleased,” we heard this voice borne from heaven, for we were with him on the holy mountain. And we have the prophetic word made more sure. You will do well to pay attention to this as to a lamp shining in a dark place, until the day dawns and the morning star rises in your hearts.
Gospel
Matthew 17:1-9
And after six days Jesus took with him Peter and James and John his brother, and led them up a high mountain apart. And he was transfigured before them, and his face shone like the sun, and his garments became white as light. And behold, there appeared to them Moses and Eli’jah, talking with him. And Peter said to Jesus, “Lord, it is well that we are here; if you wish, I will make three booths here, one for you and one for Moses and one for Eli’jah.” He was still speaking, when lo, a bright cloud overshadowed them, and a voice from the cloud said, “This is my beloved Son, with whom I am well pleased; listen to him.” When the disciples heard this, they fell on their faces, and were filled with awe. But Jesus came and touched them, saying, “Rise, and have no fear.” And when they lifted up their eyes, they saw no one but Jesus only. And as they were coming down the mountain, Jesus commanded them, “Tell no one the vision, until the Son of man is raised from the dead.”