Albert Barnes Commentary Leviticus 14:9

"And it shall be on the seventh day, that he shall shave all his hair off his head and his beard and his eyebrows, even all his hair he shall shave off: and he shall wash his clothes, and he shall bathe his flesh in water, and he shall be clean." — Leviticus 14:9 (ASV)

The best of all types of the healing of the Spirit, was the healing of the leper. In his formal cleansing, consecration, and atonement by sacrifice (see the notes at Leviticus 14:9-20), the ministers of the sanctuary bore public witness that he was restored to the blessing of communion with his people and with Yahweh. Hence, when the Son of God proved His divine mission by healing the lepers (Matthew 11:5), He did not excuse them from going to the priest to offer for the cleansing those things which Moses commanded (Mark 1:44; Luke 5:14), for a testimony to the people (Matthew 8:4).