Him that is to be cleansed - Of him that has been cleansed. The significance of the act is similar to that in Leviticus 8:11, Leviticus 8:15.
Related Commentaries of Leviticus 14:17
Leviticus 14:17-18
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:
18 And the remnant of the oil that is in the priest's hand he shall pour upon the head of him that is to be cleansed: and the priest shall make an atonement for him before the LORD.