In order to come into God’s presence in worship, Old Testament believers needed to make sure they were ceremonially clean. Uncleanness disqualified those who sought to worship God. In this passage, we see a leper bowing down to Jesus (worship) with nothing to offer but his overwhelming need. Jesus is the provision that washes all uncleanness away. Coming to God has never been something those sinful human beings can do on their own. The only way to God is not our righteousness but the righteousness of the Lamb of God who opened a new and living way through the blood of his sacrifice.