“for all have sinned and fall short of the glory of God” (Romans 3.23 ESV)
This well known verse speaks volumes! This verse gets to the heart of the matter. There is no one on Earth who is sinless. Jesus Christ is the only One who ever lived a fully sinless life. Adam and Eve had a taste of sinlessness and guiltlessness, but threw it all away in the Garden of Eden. Before we seek to blame them, we should realize that we probably would have done the same thing in their place. God was not surprised that it happened.
This problem of sin has touched all of our lives in many ways. First, Adam’s sin (Later in Romans, Paul points out the sin fell to him despite Eve eating the forbidden fruit in the Garden due to his authority) has put us under a curse from birth and due to his sin we are born into a cursed world. Second, our sin has kept us from God until we came to receive Christ, and from there our sin clouds our communion with God. Third, the sin of others interferes with our lives and our circle of friends and family. Someone can affect our life through his own sin when we have not, in this case, sinned. An example would be when a driver impaired by alcohol loses control of his vehicle and hits two pedestrians who are doing nothing wrong (something that actually happened to my friend and her fiancée).
The point is that we are sinners (saved by grace) living in a world of sinners (most of which are slaves to their sin and not saved by grace). We should understand that we can be affected by the sin of others and we can sin and affect others.
Let us strive to resist the sin that our flesh has grown accustomed to while praying to counter the sin in the world around us. However, the sinners around us need Jesus just like we did, so pray for them and remember that we do not wrestle against flesh and blood- not people, but ours is a spiritual battle. (Ephesians 6.12; 2 Corinthians 10.3-5)