Mark 9:2-7

2 Now after six days Jesus took Peter, James, and John, and led them up on a high mountain apart by themselves; and He was transfigured before them. 3 His clothes became shining, exceedingly white, like snow, such as no launderer on earth can whiten them. 4 And Elijah appeared to them with Moses, and they were talking with Jesus. 5 Then Peter answered and said to Jesus, "Rabbi, it is good for us to be here; and let us make three tabernacles: one for You, one for Moses, and one for Elijah"-- 6 because he did not know what to say, for they were greatly afraid. 7 And a cloud came and overshadowed them; and a voice came out of the cloud, saying, "This is My beloved Son. Hear Him!"