Forgiveness was already given since the beginning of time

Forgiveness is not given only when we believe in Christ, and neither just for confessing of our sins. Forgiveness was already given since the beginning of time.

God didn't change His mind from unforgiveness to forgiveness even with the death, burial and resurrection of Christ. Forgiveness is always in His heart.

All man -- believing and unbelieving -- are forgiven, but it is only in believing that the grace by which we are forgiven produce faith, hope and love.

Christ planned to die for man because He forgave us already. It was not the sacrifice that forgave, but in the sacrifice is the foundation of forgiveness and washing away of sins. 

The cross is divine evidence and our assurance that we are completely forgiven -- even for sins we have not yet committed. 

Therefore it is not with our repentance as an unbeliever that we are forgiven, nor our confession of sins as a believer, but by the revelation and acceptance of grace; realizing the kind of love that forgives all sins we come to true repentance and sincere confessions. Such are not the conditions required to be forgiven.

We never need again to ask for forgiveness, for our faith is in grace, the foundation of having been eternally forgiven of all sins, no matter how short of His holiness we fall; and not believing in this truth takes away our faith.