What does it mean to have no sin in Christ?

The concept of having no sin in Christ is profoundly rooted in the doctrine of justification by faith. As articulated in John 9, when believers look to Christ in faith, they are united with Him in His righteousness. This union means that God no longer sees believers as guilty sinners but rather as righteous in Christ. In 2 Corinthians 5:21, we read that Christ became sin for us so that in Him we might become the righteousness of God. This incredible exchange signifies that our sins were placed upon Christ at the cross while His perfect righteousness is credited to us. Consequently, those who are in Christ are judged not by their own sinful records but by the sinless record of Jesus, thus being declared without sin.