How does suffering relate to being 'done with sin'?

In 1 Peter 4:1, it states that he who has suffered in the body is done with sin. This does not imply a sinless state but signifies that through Christ's suffering and our identification with Him, our connection to sin has been fundamentally altered. Paul expresses that in Christ, we are justified and freed from sin's dominion. Hence, while we may still struggle with sin in our lives, our standing before God has changed, allowing us freedom from condemnation and a call to live righteously.