Leviticus 14:28
And the priest shall put of the oil that is in his hand upon the tip of the right ear of him that is to be cleansed, and upon the thumb of his right hand, and upon the great toe of his right foot, upon the place of the blood of the trespass offering:
This law is part of the ceremonial law given through Moses for the cleansing of a person healed of leprosy, requiring the cleansed person to go show himself to the priest and present the offering Moses commanded for his cleansing. The rite required the priest to put oil on the tip of the right ear, on the thumb of the right hand, and on the great toe of the right foot, upon the place already marked with the blood of the trespass offering.
The priest had first to thoroughly examine the healed person and publicly pronounce and certify him entirely free from the infectious disease and in sound health before accepting an offering from his hands. Only after that examination and declaration was he privileged to return to family and friends, to society and the congregation, without endangering them. That examination and certification formally confirmed the cure and restoration and made the event a public testimony that the man was free of disease and eligible to return.
Jesus directed the healed leper to obey this requirement and present the offering, thereby sanctioning the law. His direction showed that his work, teachings, directions, and healing respected the law of Moses and the Jewish code rather than opposing them. The required offering was thus made a testimony to the priests, and the restoration a public testimony to Christ's power and love. The ceremony was a shadowy type whose significance is explained by Christ's death, when type met antitype.