Although the issue for the forgiveness of sins has been paid for by Jesus on Calvary; sin still lies at the door.
The evidence of this is found in our deeds or actions. But the source of our actions comes from our EYES.
If we live by faith, our EYES stay sinless. If we live by sight, death reigns in us.
The keeping of the commandments of Christ keep our lives holy. Without JESUS CHRIST, our EYES remain evil and full of darkness.