Numbers 6:6-8

21st Century King James Version

⁶ All the days that he separateth himself unto the Lord 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, because the consecration of his God is upon his head.

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