Leviticus 14:17
And of the rest of the oil that is in his hand shall the priest put 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 blood of the trespass offering:
Leviticus 14:17 belongs to the Mosaic law for the examination, cleansing, and restoration of a person healed of leprosy, which required him to present himself to the priest and offer for his cleansing what Moses commanded. The law required the healed person to show himself for examination, and the priest had to thoroughly examine him before accepting his offering. The priest could not accept the offering until he publicly proclaimed to the people that the man was entirely free from the infectious disease and in sound health. That decision and certification confirmed the cure and permitted him to unite again safely with family, friends, and community without endangering them.
By directing a healed leper to present the prescribed offering, Jesus showed that His work upheld rather than opposed the law of Moses and was not opposed to the Jewish code. Obeying this requirement gave public testimony and evidence to the priests and to the people and proved obedience to the law. It gave the priests the opportunity to examine the man and certify his cure, with their certification serving as public testimony to the healing.
That certification confronted the priests with evidence and conviction of divine healing power, especially in a miraculous cure of a kind never before known. The ceremonial ordinances to which the verse belongs were sacred types representing events fulfilled in Christ. His death made their meaning clear, yet their requirements remained binding until type met antitype.