In this week’s parsha we learn all about the nazir. A nazir is a person who accepts upon himself added restrictions. He is compared in some ways to a Kohen Gadol. As a result of his added holiness, he is not allowed to drink wine, he is not allowed to cut his hair, and he is not allowed to come into contact with a dead person. After he finishes his period of nezirus he must bring a series of korbonos.
Regarding the korbonos brought by a nazir at the conclusion of his status of being a nazir, the Torah says(Bamidbar 6:11): הנפש על חטא מאשר עליו וכפר לעלה ואחד לחטאת אחד הכהן ועשה -” The Kohen shall make one as a sin-offering and one as an olah-offering, and he shall provide him atonement for having sinned regarding the soul...”.
We understand why a nazir would bring a burnt offering. It seems he did a very virtuous thing by accepting upon himself the holiness of a nazir and an olah-offering
