Scripture is truth, and if we see something in scripture that does not reflect truth it is not the fault of scripture but of our understanding. And even Paul tells us that even though Christ clears him of sin he still sins. Romans 7: 15 I do not understand what I do. For what I want to do I do not do, but what I hate I do.No one who is born of God practices sin, because His seed abides in him; and he cannot sin, because he is born of God.
Whosoever is born of God doth not commit sin; for his seed remaineth in him: and he cannot sin, because he is born of God. .
However in 2 Peter 1:9 we are told we are near sighted and blind if we accept the forgiveness and power of Christ and do not control our will we do have control of to live as Godly a life as we possibly can.