All the days of his separation he is holy to the LORD.
After the law for the discovery and shame of those that by sin had made themselves vile, fitly follows this for the direction and encouragement of those who by their eminent piety and devotion had made themselves honourable, and distinguished themselves from their neighbours.
Commenting on Numbers 6:1-21
All the days of his separation he is holy unto the Lord. Set apart for his service, separate from all others, especially the dead, and under obligation to abstain from the above things; from drinking wine, from shaving his hair, and from defiling himself for the dead, and to be employed in holy and religious exercises during the time his vow is upon him.
Num 6:6-8 Because the Nazarite wore the diadem of his God upon his head in the growth of his hair, and was holy to the Lord during the whole period of his consecration, he was to approach no dead person during that time, not even to defile himself for his parents, or his brothers and sisters, when they died, according to the law laid down...
Commenting on Numbers 6:6-8