King James Version, Updated™

KJV:   1 And he said unto them, Verily I say unto you, That there be some of them that stand here, which shall not taste of death, till they have seen the kingdom of God come with power.

KJVu: 1 He said to them, "Truly I say to YOU, That there are some of those who stand here, who shall not taste of death, until they have seen the kingdom of God come with power. "

KJV:   2 And after six days Jesus taketh with him Peter, and James, and John, and leadeth them up into an high mountain apart by themselves : and he was transfigured before them.

KJVu: 2 After six days Jesus took with him Peter, and James, and John, and led them up onto a high mountain privately by themselves ; and he was transfigured before them.

KJV:   3 And his raiment became shining, exceeding white as snow; so as no fuller on earth can white them.

KJVu: 3 His garments became shining, exceedingly white as snow; such as no launderer on earth can whiten them.

Notes: "Fuller" highlighted in the KJV verse is Strong’s G1102 with a Strong’s Exhaustive Concordance definition of "cleaner, launderer -|- By variation for a derivative from knapto (to tease cloth); a cloth-dresser — fuller."

KJV:   4 And there appeared unto them Elias with Moses: and they were talking with Jesus.

KJVu: 4 And there appeared to them Elijah with Moses ; and they were talking with Jesus.