Here is what I believe about Adam and how that is related to Jesus' cross sacrifice.
As a Baha'i, I do not believe in the
Adam and Eve were real people who existed. I do not believe that there was a literal garden with a tree and a snake and two people who ate a fruit from a tree. Rather, I interpret that part of Genesis as an allegory:
30: ADAM AND EVE
I believe that Adam was a Prophet who actually existed; not the first man, but the first Prophet of the Adamic cycle of religion.
What I believe the allegory means is that humans inherited the propensity to sin from Adam, but not because Adam ate an apple from a tree. Rather, when Adam was born, he entered into the world of good and evil, the material world... The attachment to the material world, which is sin, was inherited by the descendants of Adam... It is because of this
attachment that men have been deprived of essential spirituality and instead have the propensity to sin and do evil.
As the descendants of Adam, humans have one nature which can choose to do evil and one nature that can choose to do good.
Those who acknowledged the cross sacrifice and turned toward Jesus and His teachings were
saved from this attachment and sin, obtained everlasting life, and were delivered from the chains of bondage to the material world. They were freed from the vices of the human world, and were blessed by the virtues of the Kingdom.