For John 3:13...Who ascended
himself up to heaven? Elijah and Enoch ascended by the hand of God - if you will (or God's hand/help). Christ did this on his own as the son of God.Number two:
Matthew 17:2-3
And was transfigured before them: and his face did shine as the sun, and his raiment was white as the light. And, behold, there appeared unto them Moses and Elias talking with him.
So the answer is they were taken to heaven, and we have one of them here at the transfiguration.
Luke 9:31
Who appeared in glory, and spake of his decease which he should accomplish at Jerusalem.
Description of the same event - they appeared gloriously. (And that one is for samy.)