The believer has no sins.
But an unbeliever is dead in sin.
Colossians 2 “13 When you were dead in your sins and in the uncircumcision of your flesh, God made you alive with Christ. He forgave us all our sins, “
But when we first believed in Jesus we were made alive forgiven all sin.
There is no sin in the believer.
The believer was in past sin that was forgiven.
There is no present or future sins because the believer is not in sin.
The believer is in Christ.
Christ lives in us. Not I but Jesus alone.
Galatians 2 ” 20 I have been crucified with Christ and I no longer live, but Christ lives in me. The life I now live in the body, I live by faith in the Son of God, who loved me and gave himself for me.”
Believers have no sin because only Christ lives in us.
Jesus died to forgive/take away all sins and we are now sinless because we are alive with Christ living in us.
We are righteous, sinless, and perfect because Jesus removed the law and made us sinless.
As Christ is so are we!