Beside that that his hand shall get - The Nazarite, in addition to the offerings prescribed above, was to present free-will offerings according to his possessions or means.

This is the law of the Nazarite - We learn from Maimonides, in his Treatise of the Nazarite, that a man might become a Nazarite in behalf of another; that is, might assist him in bearing the expenses of the sacrifices, etc. "A son may fulfill the vow his deceased father hath made, but did not live to accomplish: - He that saith, upon me be the shaving of a Nazarite, he is bound to bring the offerings of shaving for cleanness, and may offer them by the hand of what Nazarite he will. If he say, Upon me be half the oblations of a Nazarite, then he bringeth half the offerings by what Nazarite he will, and that Nazarite payeth his offerings out of that which is his."

"By this," says Mr. Ainsworth, "we may see the reason of that which James said to Paul, though he had no Nazarite's vow upon him: 'We have four men who have a vow on them; them take and sanctify thyself with them, and Be At Charges With Them, that they may shave their heads, etc. Then Paul took the men, and the next day, sanctifying himself with them, entered into the temple to signify the accomplishment of the days of sanctification, (or Nazariteship), until that an offering should be offered for every one of them;' see Acts 21:23-26. For though Paul had not vowed or fulfilled a Nazariteship himself, yet might he contribute with them, and partake of their charges about the sacrifices."

This is the law of the Nazarite, who hath vowed,.... The vow of a Nazarite; what he is obliged to do when his Nazariteship is up:

and of his offering unto the Lord for his separation; of the several offerings required of him, to offer to the Lord, for and upon his going through his Nazariteship, his burnt offering, sin offering, sacrifice of peace offerings, his meat offering and drink offering; together with the basket of unleavened bread, cakes and wafers:

besides that that his hands shall get; the above offerings were what he was obliged unto by the law of God, even though a poor man; but, besides these, it was expected of a man of substance, that he would voluntarily of himself offer more, according to his ability and the length of the time of his Nazariteship:

according to the vow which he hath vowed, so he must do after the law of his separation; there were some things he was obliged to do by his vow, and as he had vowed, there was a necessity upon him to fulfil it; as to abstain from the things he vowed so to do, and that as long a time as he fixed by his vow, and when finished to offer the sacrifices required of him.

"This is the law of the Nazarite, who vowed his sacrificial gifts to the Lord on the ground of his consecration," i.e., who offered his sacrifice in accordance with the state of a Nazarite into which he had entered. For the sacrifices mentioned in Numbers 6:14. were not the object of a special vow, but contained in the vow of the Nazarite, and therefore already vowed (Knobel). "Beside what his hand grasps," i.e., what he is otherwise able to perform (Leviticus 5:11), "according to the measure of his vow, which he vowed, so must he do according to the law of his consecration," i.e., he had to offer the sacrifices previously mentioned on the ground of his consecration vow. Beyond that he was free to vow anything else according to his ability, to present other sacrificial gifts to the Lord for His sanctuary and His servants, which did not necessarily belong to the vow of the Nazarite, but were frequently added. From this the custom afterwards grew up, that when poor persons took the Nazarite's vow upon them, those who were better off defrayed the expenses of the sacrifices (Acts 21:24; Josephus, Ant. xix. 6, 1; Mishnah Nasir, ii. 5ff.).

This is the law of the Nazarite who hath vowed, and of his offering unto the LORD for his separation, {k} beside that that his hand shall get: according to the vow which he vowed, so he must do after the law of his separation.

(k) At the least he shall do this, if he is not able to offer more.

6:21 That his hand shall get - Besides what he shall voluntarily give according to his ability.

6:1-21 The word Nazarite signifies separation. Some were appointed of God, before their birth, to be Nazarites all their days, as Samson and John the Baptist. But, in general, it was a vow of separation from the world and devotedness to the services of religion, for a limited time, and under certain rules, which any person might make if they pleased. A Nazarite is spoken of as well known; but his obligation is brought to a greater certainty than before. That the fancies of superstitious men might not multiply the restraints endlessly, God gives them rules. They must not drink wine or strong drink, nor eat grapes. Those who separate themselves to God, must not gratify the desires of the body, but keep it under. Let all Christians be very moderate in the use of wine and strong drink; for if the love of these once gets the mastery of a man, he becomes an easy prey to Satan. The Nazarites were to eat nothing that came of the vine; this may teach the utmost care to avoid sin, and all that borders upon it, and leads to it, or may be a temptation to us. They must not cut their hair. They must neither poll their heads, nor shave their beards; this was the mark of Samson being a Nazarite. This signified neglect of the body, and of the ease and ornament of it. Those who separate themselves to God, must keep their consciences pure from dead works, and not touch unclean things. All the days of their separation they must be holy to the Lord. This was the meaning of those outward observances, and without this they were of no account. No penalty or sacrifice was appointed for those who wilfully broke their vow of being Nazarites; they must answer another day for such profane trifling with the Lord their God; but those were to be relieved who did not sin wilfully. There is nothing in Scripture that bears the least resemblance to the religious orders of the church of Rome, except these Nazarites. But mark the difference, or rather how completely opposed! The religious of that church are forbidden to marry; but no such restriction is laid upon the Nazarites. They are commanded to abstain from meats; but the Nazarites might eat any food allowed other Israelites. They are not generally forbidden wine, not even on their fasting days; but the Nazarites might not have wine at any time. Their vow is lasting, even to the end of their lives; the Nazarites' vow was only for a limited time, at their own will; and in certain cases not unless allowed by husbands or parents. Such a thorough difference there is between rules of man's invention and those directed in Scripture, Let us not forget that the Lord Jesus is not only our Surety, but also our example. For his sake we must renounce worldly pleasures, abstain from fleshy lusts, be separate from sinners, make open profession of our faith, moderate natural affections, be spiritually-minded, and devoted to God's service, and desirous to be an example all around us.