See thou tell no man. — St. Mark adds, with his usual vividness, “straitly charged,” or vehemently urged him, and “forthwith sent him away.” The reasons of the command are not given, but are not far to seek. (1.) The offering of the gift was an act of obedience to the Law (Leviticus 14:10; Leviticus 14:21-22), and was therefore the right thing for the man to do. In this way also our Lord showed that He had not come to destroy the Law, but to fulfil. (2.) It was the appointed test of the reality and completeness of the cleansing work. (3.) It was better for the man’s own spiritual life to cherish his gratitude than to waste it in many words.
So much lies on the surface. But as the treatment of leprosy in the Mosaic code was clearly symbolical rather than sanitary, and dealt with the disease as the special type of sin in its most malignant form, so in the healing of the leper we may fairly see the symbol of our Lord’s power to purify and save from sin, and in His touching the leper, the close fellowship into which He entered with our unclean nature, that through His touch it might be made clean. The miracle, like most other miracles, was also a parable in act.