Numbers 6:8

4 All the days of his separation, he is not to eat anything that comes from the grapevine, not even the seeds or skins.

5 For the entire period of his vow of separation, no razor shall pass over his head. He must be holy until the time of his separation to the LORD is complete; he must let the hair of his head grow long.

6 Throughout the days of his separation to the LORD, he must not go near a dead body.

7 Even if his father or mother or brother or sister should die, he is not to defile himself, because the crown of consecration to his God is upon his head.

8 Throughout the time of his separation, he is holy to the LORD.

9 If someone suddenly dies in his presence and defiles his consecrated head of hair, he must shave his head on the day of his cleansing—the seventh day.

10 On the eighth day he must bring two turtledoves or two young pigeons to the priest at the entrance to the Tent of Meeting.

11 And the priest is to offer one as a sin offering and the other as a burnt offering to make atonement for him, because he has sinned by being in the presence of the dead body. On that day he must consecrate his head again.

12 He must rededicate his time of separation to the LORD and bring a year-old male lamb as a guilt offering. But the preceding days shall not be counted, because his separation was defiled.

Read all of Numbers 6