Sin > Sins
There is a tendency to think that our sins are bigger than our sin-maybe because it’s that rare case of language when the plural is smaller than the singular. Sins are those individuals acts of rebellion — symptoms of the bigger problem. Our sin is the biggest problem: it’s our condition or state which is in hideous rebellion toward a holy and good God. When Christians feel that sins (acts) are bigger than sin (condition), they see evangelism as an effort of moral reform rather than explaning the steps that need to take place to rip out our wicked hearts and replace them with new hearts — that amazing work of God that Jesus called being born again.
J.Mack Stiles, Marks of the Messenger, p. 32