How does Jesus cleanse us from the leprosy of sin?

The process of cleansing from sin, likened to the healing of leprosy, is accomplished through the work of Christ on the cross and the subsequent application of His grace in the believer's life. Mark 1:42 describes the immediate healing of the leper upon Jesus' command, symbolizing how faith in Christ prompts a swift response of forgiveness and cleansing. In theological terms, this represents justification—being declared righteous before God—and sanctification—the ongoing work of becoming more like Christ. Ultimately, both dimensions highlight that our cleansing is rooted in Christ's finished work and the inner transformation by the Holy Spirit as we walk in faith and obedience.