Exodus 24:12-18 New International Version (NIV)
12 The Lord said to Moses, “Come up to me on the mountain and stay here, and I will give you the tablets of stone with the law and commandments I have written for their instruction.”
13 Then Moses set out with Joshua his aide, and Moses went up on the mountain of God.14 He said to the elders, “Wait here for us until we come back to you. Aaron and Hur are with you, and anyone involved in a dispute can go to them.”
15 When Moses went up on the mountain, the cloud covered it, 16 and the glory of the Lordsettled on Mount Sinai. For six days the cloud covered the mountain, and on the seventh day the Lord called to Moses from within the cloud. 17 To the Israelites the glory of the Lordlooked like a consuming fire on top of the mountain. 18 Then Moses entered the cloud as he went on up the mountain. And he stayed on the mountain forty days and forty nights.
Matthew 17:1-9 New International Version (NIV)
17 After six days Jesus took with him Peter, James and John the brother of James, and led them up a high mountain by themselves. 2 There he was transfigured before them. His face shone like the sun, and his clothes became as white as the light. 3 Just then there appeared before them Moses and Elijah, talking with Jesus.
4 Peter said to Jesus, “Lord, it is good for us to be here. If you wish, I will put up three shelters—one for you, one for Moses and one for Elijah.”
5 While he was still speaking, a bright cloud covered them, and a voice from the cloud said, “This is my Son, whom I love; with him I am well pleased. Listen to him!”
6 When the disciples heard this, they fell facedown to the ground, terrified. 7 But Jesus came and touched them. “Get up,” he said. “Don’t be afraid.” 8 When they looked up, they saw no one except Jesus.
9 As they were coming down the mountain, Jesus instructed them, “Don’t tell anyone what you have seen, until the Son of Man has been raised from the dead.”