St. Paul’s Letter to the Romans 12:1-3
Brethren, I appeal to you, by the mercies of God, to present your bodies as a living sacrifice, holy and acceptable to God, which is your spiritual worship.
Do not be conformed to this world but be transformed by the renewal of your mind, that you may prove what is the will of God, what is good and acceptable and perfect.
For by the grace given to me I bid every one among you not to think of himself more highly than he ought to think, but think with sober judgment, each according to the measure of faith which God has assigned him.
At that time, Jesus took with him Peter and James and John, and led them up a high mountain apart by themselves; and he was transfigured before them, and his garments became glistening, intensely white, as no fuller on earth could bleach them.
And there appeared to them Elijah with Moses; and they were talking to Jesus.
And Peter said to Jesus, “Master, it is well that we are here; let us make three booths, one for you and one for Moses and one for Elijah.” For he did not know what to say, for they were exceedingly afraid.
And a cloud overshadowed them, and a voice came out of the cloud, “This is my beloved son; listen to him.”
And suddenly, looking around they no longer saw any one with them but Jesus only.
And as they were coming down the mountain he charged them to tell no one what they had seen, until the Son of man should have risen from the dead.