We remember that story in which God created the perfect man in all his ways, however, he disobeyed the commandment of God and through that single man called Adam, sin entered all humanity and this is why the Scriptures tell us: “For all have sinned, and come short of the glory of God.”
We should not think that the hope of humanity ended in Eden with the sin of Adam, but that we should know that Christ being righteous and being God offered His life as a pleasing holocaust for us to reunite with God, so that separation ends on a bloody log.
Paul said to the Romans:
19 For just as through the disobedience of the one man the many were made sinners, so also through the obedience of the one man the many will be made righteous.
20 The law was brought in so that the trespass might increase. But where sin increased, grace increased all the more,
21 so that, just as sin reigned in death, so also grace might reign through righteousness to bring eternal life through Jesus Christ our Lord.