Numbers 6:18

“And the Nazarite shall shave the head of his separation, [at] the door of the tabernacle of the congregation, etc.] The Targum of Jonathan is, “and the Nazarite shall shave the head of his separation without,” without the tabernacle, the door of it, where the people assembled together; so that this was to be done publicly, that it might be known of all, and no offence taken at the Nazarite’s drinking wine, and concerning himself for the dead, and attending funerals, for by this action it was known that his Nazariteship was at an end; and whereas the hair of the Nazarite was consecrated to the Lord by his vow, and this vow being punctually fulfilled, it was sacred, and to be presented to the…”

“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…”

“At the door - Publickly, that it might be known that his vow was ended, and therefore he was at liberty as to those things from which he had restrained himself for a season, otherwise some might have been scandalized at his use of his liberty. The fire - Upon which the flesh of the peace - offerings was boiled. Numbers 6:19”

“shave the head: The hair, which was permitted to grow for this purpose, was shaven off, as a token that the vow was accomplished. Num 6:5, Num 6:9; Act 18:18, Act 21:24, Act 21:26 and put it: Luk 17:10; Eph 1:6 Numbers 6:19”