As when He healed the leper (Matt. 8:1–4), Jesus again shows His ability to make clean the unclean. These miracles are clear evidence that the old distinctions between the ceremonially clean and unclean pass away in the new covenant, for in Christ, God will cleanse all that brings pollution. There are no second-class citizens in the kingdom of God. If you know Christ, He is even now cleansing you and thereby enables you to approach Him with gladness.
For further study:
The Bible in a year: