Satan's Subterfuge

Everywhere we look, there is corruption, rebellion, and sin both inside and outside of the visible Church, but does this mean that the invisible Church is also affected by it? In other words, as the authentic believer walks with Christ, yet sins from time to time, does that sin directly affect the purity of the invisible Church, or is the invisible Church (Christ's Bride) already pure, unable to be contaminated by sin? Does God want us to focus on our sin, or does He have something else that we should spend our time focusing on? Does the action of concentrating on our sin (and how terrible it can make us feel), create within us a spiritual maturity, or a spiritual poverty, born of false piety? Are we struggling to gain something we already possess, but are simply not aware of it yet? Satan benefits greatly by keeping God's children blind to the many blessings that are ours in Christ now.