I have what I believe is a rather helpful addition to dealing with the problem of Adam as seen in Romans 5. Traditionally the argument has been whether Adam here is literal as well as historical
as Paul seems to imply vs being symbolical and representing all humanity given the advancements in science as we know them today… I would suggest we see this passage of Romans 5 with a more transcendent understanding of history; one that is Biblical as well and not as limiting as to being either completely literal or merely symbolical… In using Jesus as representing the means for all men being saved as Paul implies, there are clear teachings that while his cross and redemption happened at a specific time and place historically, Scripture also teaches that the cross has implications transcending time and space, “before the foundation of the world.” Is it not possible then that in Paul’s use of Adam, that Adam as well as Christ could have been a real historical persons whose sin and salvation was not bound up in an historical one time event affecting one man and then moving forward, but rather representative of all men both during their own times, before in the distant past,in 33 Ad, and throughout history. If so, it seems that this might eliminate the need to see Adam as the “first” man and the debate over the historical Adam and include Adam’s sin “before the foundation of the world” as well in God’s eyes? If so both Adam and Christ would become to represent "the first, the last and all all humanity as well, fitting well within the universalism of “all” being not everyone within history but everyone WITHIN history who is saved .As far as I have read no one has ever put it quite this way.