29Moses came down from Mount Sinai. As he came down from the mountain with the two tablets of the covenant in his hand, Moses did not know that the skin of his face shone because he had been talking with God. 30When Aaron and all the Israelites saw Moses, the skin of his face was shining, and they were afraid to come near him. 31But Moses called to them; and Aaron and all the leaders of the congregation returned to him, and Moses spoke with them. 32Afterwards all the Israelites came near, and he gave them in commandment all that the LORD had spoken with him on Mount Sinai. 33When Moses had finished speaking with them, he put a veil on his face; 34but whenever Moses went in before the LORD to speak with him, he would take the veil off, until he came out; and when he came out, and told the Israelites what he had been commanded, 35the Israelites would see the face of Moses, that the skin of his face was shining; and Moses would put the veil on his face again, until he went in to speak with him.
Exodus 34:29-35

16For we did not follow cleverly devised myths when we made known to you the power and coming of our Lord Jesus Christ, but we had been eyewitnesses of his majesty. 17For he received honour and glory from God the Father when that voice was conveyed to him by the Majestic Glory, saying, ‘This is my Son, my Beloved, with whom I am well pleased.’ 18We ourselves heard this voice come from heaven, while we were with him on the holy mountain.
2 Peter 1:16-18

1Six days later, Jesus took with him Peter and James and his brother John and led them up a high mountain, by themselves. 2And he was transfigured before them, and his face shone like the sun, and his clothes became dazzling white. 3Suddenly there appeared to them Moses and Elijah, talking with him. 4Then Peter said to Jesus, ‘Lord, it is good for us to be here; if you wish, I will make three dwellings here, one for you, one for Moses, and one for Elijah.’ 5While he was still speaking, suddenly a bright cloud overshadowed them, and from the cloud a voice said, ‘This is my Son, the Beloved; with him I am well pleased; listen to him!’ 6When the disciples heard this, they fell to the ground and were overcome by fear. 7But Jesus came and touched them, saying, ‘Get up and do not be afraid.’ 8And when they looked up, they saw no one except Jesus himself alone.

9As they were coming down the mountain, Jesus ordered them, ‘Tell no one about the vision until after the Son of Man has been raised from the dead.’ 
Matthew 17:1–9