Numbers 6:6-8

King James Version

⁶ All the days that he separateth himself unto the Lord he shall come at 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: because the consecration of his God is upon his head.

⁸ All the days of his separation he is holy unto the Lord.