This Bible contradiction is from the Infidels.org.
2 Kings 2:11 View context
And it came to pass, as they still went on, and talked, that, behold, [there appeared] a chariot of fire, and horses of fire, and parted them both asunder; and Elijah went up by a whirlwind into heaven.
John 3:13 View context
And no man hath ascended up to heaven, but he that came down from heaven, [even] the Son of man which is in heaven.