As I briefly mentioned in church on Sunday, there is currently a debate going on regarding the historicity of Adam and Eve. Was Adam a real man or is he a metaphor to tell us that God is behind everything? Romans 5 tells us that we are all children of one man
12Therefore, just as sin came into the world through one man, and death through sin, and so death spread to all men because all sinned— 13for sin indeed was in the world before the law was given, but sin is not counted where there is no law. 14Yet death reigned from Adam to Moses, even over those whose sinning was not like the transgression of Adam, who was a type of the one who was to come.
15But the free gift is not like the trespass. For if many died through one man’s trespass, much more have the grace of God and the free gift by the grace of that one man Jesus Christ abounded for many. 16And the free gift is not like the result of that one man’s sin. For the judgment following one trespass brought condemnation, but the free gift following many trespasses brought justification. 17For if, because of one man’s trespass, death reigned through that one man, much more will those who receive the abundance of grace and the free gift of righteousness reign in life through the one man Jesus Christ.
18Therefore, as one trespass led to condemnation for all men, so one act of righteousness leads to justification and life for all men. 19For as by the one man’s disobedience the many were made sinners, so by the one man’s obedience the many will be made righteous. 20Now the law came in to increase the trespass, but where sin increased, grace abounded all the more, 21so that, as sin reigned in death, grace also might reign through righteousness leading to eternal life through Jesus Christ our Lord.
Here is a little video of John Piper speaking about the issue.