"In other words, contrary to what many people assume, we don't fall from a state of complete innocence into sin individually, on our own. But Adam, who in effect was acting as an agent and proxy for the entire human race, plunged all of humanity at once into sin. In the words of Romans 5:19, By one man's disobedience many were made sinners".Every one of Adam's progeny was condemned by his actions. And that is why the whole human race is said to be guilty because of what he did, and not because of what Eve did."