Numbers 6:11

11 And the priest will give one for a sin-offering and the other for a burned offering to take away the sin which came on him on account of the dead, and he will make his head holy that same day.

Numbers 6:11 Meaning and Commentary

Numbers 6:11

And the priest shall offer the one for a sin offering, and
the other for a burnt offering
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;
consecrate himself to God afresh, particularly the hair of his head, let that grow again and begin his Nazariteship anew; so Jarchi interprets it, to return and begin the account of his Nazariteship.

Numbers 6:11 In-Context

9 If death comes suddenly to a man at his side, so that he becomes unclean, let his hair be cut off on the day when he is made clean, on the seventh day.

10 And on the eighth day let him take to the priest, at the door of the Tent of meeting, two doves or two young pigeons;

11 And the priest will give one for a sin-offering and the other for a burned offering to take away the sin which came on him on account of the dead, and he will make his head holy that same day.

12 And he will give to the Lord his days of being separate, offering a he-lamb of the first year as an offering for error: but the earlier days will be a loss, because he became unclean.

13 And this is the law for him who is separate, when the necessary days are ended: he is to come to the door of the Tent of meeting,