How do we know Jesus can cleanse us from sin?

In Luke 5, the account of Jesus healing a leper illustrates not only His authority to heal but also His compassion towards sinners. The leper, desperate and full of leprosy, approaches Jesus with faith, pleading for cleansing. Jesus' response—'I will; be thou clean'—shows that He is both able and willing to forgive sins and restore individuals. This miraculous act serves as a profound type of how Jesus cleanses sinners through His sacrificial death and resurrection, making His cleansing power available to all who come to Him in faith.