Jesus took Peter, James and John up a high mountain where his appearance changed, and Moses and Elijah appeared and talked to Jesus.

Mark 9:2-8

2 A week later Jesus took Peter, James and James’ younger brother John and led them up a high mountain. While they were alone up there, he appeared very different to them. 3 His clothes became dazzling white. They were whiter than anyone on earth could make them by bleaching them. 4 Two prophets who had lived long ago, Moses and Elijah, appeared to them. Then the two of them began talking with Jesus. 5 After a short time, Peter interrupted by exclaiming, “Teacher, it is wonderful to be here! So allow us to make three shelters. One will be for you, one will be for Moses, and one will be for Elijah!” 6 He said this because he wanted to say something, but he did not know what to say, because he and the other two disciples were very awestruck. 7 Then a shining cloud appeared that covered them. God [EUP] spoke to them from the cloud saying, “This is my Son. I love him. Therefore, listen to him!” 8 When the three disciples looked around, they saw that suddenly Jesus was alone with them, and that there was no longer anyone else there.