Numbers 6:5-7

Darby Translation

⁵ All the days of the vow of his separation there shall no razor come upon his head; until the days be fulfilled, that he hath consecrated himself to Jehovah, he shall be holy; he shall let the locks of the hair of his head grow.

⁶ All the days that he hath consecrated himself to Jehovah, he shall come near no dead body.

⁷ He shall not make himself unclean for his father, or for his mother, for his brother, or for his sister when they die; for the consecration of his God is upon his head.