Matthew 7:28-8:4

And when Jesus finished these sayings, the crowds were astonished at his teaching, for he taught them as one who had authority, and not as their scribes. When he came down from the mountain, great crowds followed him; and behold, a leper came to him and knelt before him, saying, "Lord, if you will, you can make me clean." And he stretched out his hand and touched him, saying, "I will; be clean." And immediately his leprosy was cleansed. And Jesus said to him, "See that you say nothing to any one; but go, show yourself to the priest, and offer the gift that Moses commanded, for a proof to the people."