Therefore being justified by faith, we have peace with God through our Lord Jesus Christ: Romans 5:1 (KJV)
The justification in Christ Jesus is received by anybody who becomes born again. It is an act of God to declare the sinner who has received Christ Jesus as his Lord and Savior not guilty for his sins; past, present, and future sins. It is just like a criminal who has been processed for court; he stands, without hope, before the judge, but to his surprise the judge declares him not guilty of his crime, acquitted, and discharges him. Every Christian is seen by God as holy and not having committed sin at all, glory to God! This is the true gospel our Lord Jesus Christ brought to everyone who will believe. Dear reader, have you committed any sin you think is unforgivable? Know that you have been justified, therefore just confess it to God and move on with your life. Share your thoughts here!