A. 1 When he was come down from the mountain, great multitudes followed him.
B. And, behold, there came a leper and worshipped him,
C. saying, Lord, if thou wilt, thou canst make me clean.
D. And Jesus put forth his hand, and touched him,
C’’. saying, I will; be thou clean.
B’. And immediately his leprosy was cleansed.
A’. 4 And Jesus saith unto him, See thou tell no man; but go thy way, shew thyself to the priest, and offer the gift that Moses commanded, for a testimony unto them.
Note: the clear chiasm is framed by the “great multitude” of people – contrasted with the leper being told to tell no one. Mark tells us that he ignored that injunction and “blazed abroad” the healing so that the multitudes thronged Jesus.