You wrote: "Right off the bat, there's no way Christianity is represented there as stating that any Christian who commits a sin will die and burn in eternal hell because they have not gone to a priest, confessed their sin and taken communion."
1) Since the Bible never even remotely claims to have all truths explicitly in it don't expect it to. 2) it should be clear to anyone that reads John 20:21-23 that Jesus gave the Apostles power to forgive sins.
"That is absurd. That posits that a man can do something really bad, like sleeping with his girlfriend, then...even if he repents of it, apologizes to God and his girlfriend, and ask their forgiveness, yet if he dies that evening before he can go to a priest and give confession and take communion, that that Christian will burn in eternal flame, there is no way that Christianity teaches that..."
It does nothing of the kind. True contrition is true contrition. If a man knows that Christ ordained that sins such as fornication be confessed to a priest, however, then why shouldn't they be so confessed? God is not cruel. He will not allow a man who is truly sorry to perish uselessly. At the same time, however, Jesus established a way for us to have forgivness applied to us in normal situations. That way is confession.
You don't seem to understand what confession is let alone what it is not.
I'm just quoting what my friend says the church believes.
He gave me a book, by the way..."Not By Bread Alone" that had some of the same concept.
Ed