Numbers 6:12

12 and he hath separated to Jehovah the days of his separation, and he hath brought in a lamb, a son of a year, for a guilt-offering, and the former days are fallen, for his separation hath been defiled.

Numbers 6:12 Meaning and Commentary

Numbers 6:12

And he shall consecrate unto the Lord the days of his
separation
He was to begin his account again, from the time of his shaving his head, and devote as many days to the service of the Lord as what he had vowed before:

and shall bring a lamb of the first year for a trespass offering;
we see how much trouble and expense were brought by a single act of pollution, and that involuntary too; how much more need is there of an atoning sacrifice for the sins of men, even for all of them, and for which only the sacrifice of Christ is sufficient?

but the days that were before shall be lost;
which were before the pollution, how near soever the time of Nazariteship being at an end was, whether his vow was for thirty days, or a hundred, or a whole year; be it what it will, and the pollution happened on the last of those days, all were lost; he was obliged to begin again, and go through the whole time he at first vowed; and this was the case if he drank the least quantity of wine, or shaved ever so little of the hair of his head, or was any ways polluted by the dead; and this severity, as it may seem, was used to make him cautious that he broke not his vow by any means:

because his separation was defiled;
in the case instanced in, by the dead, but it was the same if he broke the law of Nazariteship in any of the other articles of it.

Numbers 6:12 In-Context

10 and on the eighth day he bringeth in two turtle-doves or two young pigeons unto the priest, unto the opening of the tent of meeting,
11 and the priest hath prepared one for a sin-offering, and one for a burnt-offering, and hath made atonement for him, because of that which he hath sinned by the body, and he hath hallowed his head on that day;
12 and he hath separated to Jehovah the days of his separation, and he hath brought in a lamb, a son of a year, for a guilt-offering, and the former days are fallen, for his separation hath been defiled.
13 `And this [is] the law of the Nazarite; in the day of the fulness of the days of his separation doth [one] bring him in unto the opening of the tent of meeting,
14 and he hath brought near his offering to Jehovah, one he-lamb, a son of a year, a perfect one, for a burnt-offering, and one she-lamb, a daughter of a year, a perfect one, for a sin-offering, and one ram, a perfect one, for peace-offerings,
Young's Literal Translation is in the public domain.