Numbers 6:11

“And the priest shall offer the one for a sin offering, and the other for a burnt offering, etc.] That is, one of the turtles or young pigeons for the one kind of sacrifice, and one for the other sort; both being necessary; the one to expiate sin, and the other as a gift to God by way of thankfulness for acceptance of the former: and make an atonement for him, for that he sinned by the dead; by being where the dead body was, which, though not sinful, in a moral sense, was, in a ceremonial one, and therefore required a sacrifice to atone for it; and which atonement was made by the sin offering typical of Christ, who was made an offering for sin: and shall hallow his head the same day;…”

“The law of the Nazarite is appropriately added to other enactments which concern the sanctity of the holy nation. That sanctity found its highest expression in the Nazarite vow, which was the voluntary adoption for a time of obligations to high and strict modes of self-dedication resembling, and indeed in some particulars exceeding, those under which the priests were placed. The present enactments do not institute a new kind of observance, but only regulate one already familiar to the Israelites Numbers 6:2. Numbers 6:2 A Nazarite - Strictly, Nazirite. This term signifies “separated” i. e., as the words following show, “unto God.” It became a technical term at an early date; compare Judges…”

“A sin - offering - Because such a pollution was, though not his sin, yet the chastisement of his sin. He sinned - That is, contracted a ceremonial uncleanness, which is called sinning, because it was a type of sin, and a violation of a law, tho' through ignorance and inadvertency. Hallow - Begin again to hallow or consecrate it. Numbers 6:12”

“offer: Lev 5:8-10, Lev 14:30, Lev 14:31 and shall: Num 6:5 Numbers 6:12”