How do we know that Jesus is the fountain for sin and uncleanness?

The text emphasizes that Jesus Christ is not merely a symbol but the actual fountain opened by God for the cleansing of sin and uncleanness. This is supported by numerous scriptures that depict Him as the fountain of living waters. In John 4:14, Jesus promises that those who drink of the water He gives will never thirst again, indicating the eternal satisfaction and cleansing available through His sacrifice. The necessity of His atoning blood underscores that only through Christ can sins be forgiven and believers made clean before God.