I will forgive their wickedness and will remember their sins no more. Heb 8:12 NIV
"Therefore, there is now no condemnation for those who are in Christ Jesus" (Rom 8:1 NIV).
"[God] justifies those who have faith in Jesus" (Rom 3:26 NIV).
For those in Christ, these promises are not only a source of joy. They are also the foundations of true courage. You are guaranteed that your sins will be filtered through, hidden in, and screened out by the sacrifice of Jesus. When God looks at you, he doesn't see you; he sees the One who surrounds you. That means that failure is not a concern for you. Your victory is secure. How could you not be courageous?
The Applause of Heaven (Max Lucado)