Shall offer, Heb. make, which is oft put for sacrificing or offering, as Exodus 29:36 1 Chronicles 21:23, compared with 2 Samuel 24:22. For a sin-offering, because such a pollution was, though not his sin, yet the chastisement of his sin, and had an appearance of sin, to wit, of negligence in not standing sufficiently upon his guard, which in such persons was in a manner equivalent to a sin. For that he sinned, i.e. contracted a ceremonial uncleanness, which is called sinning, because it was a type of sin, and a violation of a law, though through ignorance and inadvertency, as many other sins were. Shall hallow; begin again to hallow or consecrate it.
Related Commentaries of Numbers 6:11
Numbers 6:11
11 And the priest shall offer the one for a sin offering, and the other for a burnt offering, and make an atonement for him, for that he sinned by the dead, and shall hallow his head that same day.