Numbers 6:5-9

‘All the days of his vow of consecration no razor shall pass over his head. He shall be holy until the days are fulfilled which he lives as a Nazirite for the Lord; he shall let the locks of hair on his head grow long.

‘All the days of his life as a Nazirite for the Lord he shall not come up to a dead person.

He shall not make himself unclean for his father or for his mother, for his brother or for his sister, when they die, because his consecration to God is on his head.

All the days of his consecration he is holy to the Lord.

‘But if someone dies very suddenly beside him and he defiles his consecrated head of hair, then he shall shave his head on the day when he becomes clean; he shall shave it on the seventh day.