What does the Bible say about being a sinner and a saint?

In Scripture, believers acknowledge their sinful nature while also being seen as righteous through their union with Christ. For example, in Song of Solomon 1:5, the bride admits, 'I am black but comely.' This reflects the dual reality of Christians who recognize their inherent sinfulness yet also embrace their identity as saints due to the redemptive work of Christ. This paradox is echoed in 1 Timothy 1:15, where Paul identifies himself as 'the chief of sinners' yet experiences God’s grace and redemption. Consequently, believers can confess their sinful state while declaring their justification and righteousness in Christ, finding hope and beauty in this union.