Mark 9:1-3

1And he said unto them, Verily I say unto you, There are some here of them that stand by, who shall in no wise taste of death, till they see the kingdom of God come with power.

2And after six days Jesus taketh with him Peter, and James, and John, and bringeth them up into a high mountain apart by themselves: and he was transfigured before them; 3and his garments became glistering, exceeding white, so as no fuller on earth can whiten them.