Because despite the scientific debate being over for over 100 years (evolution won, by the way), there are those who keep denying it.
More correctly -
your Christian perspective.
The penalty of sin is spiritual death. Adam did not die
physically the day he ate the fruit. But he was expelled from the presence of God. God had said that he would die
that day. It follows that the expulsion from the presence of God (Eden)
is the spiritual death which is the penalty for sin.
Evolution merely tells you how our biological form came about. It says nothing about our spiritual nature, nor about morality or our relative worth compared to animals.
It doesn't even mention genetic variation, so it can't say anything about that. Why do you equate "good" with perfect, and perfect with "unchanging"? What if God's intention was to create a dynamic universe that was changing and evolving? If He did so intend, then He succeeded and His creation is indeed good - exactly what He intended.
What about the two contradictory accounts, and the presence of symbolic elements? Two people called "man" and "mother of all"? A talking snake? Trees bearing spiritually significant fruit? Sounds like mythology to me.
Bzzzzzzzzzzzt! Wrong, but thanks for playing. First you must defend your equation of "figurative" with "fallacious", and then explain why the rest of the Bible must be as fallacious or accurate as Genesis 1-3.
No they don't. What does Paul say Scripture is useful for? Scientific knowledge? No. Very specific purposes. In that it achieves its aim.
Except it isn't. Most organisms do not have blood, and yet they are alive. Where is their life? Scripture says the life is in the blood.
Grasshoppers do not have four legs. Bats are not birds. Hares do not chew the cud. The earth is not set on pillars. Rain does not come through holes in the firmament.
No-one is changing the Bible, except some evangelical translators who insert things, like the pluperfect tense in Genesis 2 regarding God's creation of the animals, and the word "Roman" in Luke to correct the apparent (and false) statement that the whole world was to be taxed. They do this to support inerrancy. The Bible left alone is clearly not inerrant.
Actually, I'd agree with you there. That's why I don't hold with the day age theory. But nor do any other theistic evolutionists - 'day age' is an old earth
Creationist position.
To an extent I agree. The elements of the story are true
within the framework of a figurative narrative. I address this in some detail in an essay I wrote -
http://freespace.virgin.net/karl_and.gnome/genesis.htm