How do we know that God can save even the worst sinners?

1 Corinthians 6:11 reassures believers that, despite their past sins, they can be washed, sanctified, and justified in the name of the Lord Jesus Christ. This transformation isn't based on human merit but solely on the work of Christ and His sacrifice for sin. When people come to faith in Jesus, they are not just forgiven; they are transformed, showing that no sinner is beyond the reach of God's grace. The fact that even the most wretched can be made new in Christ is the encouragement for all who feel unworthy.