Numbers 6:5-7

The Voice

⁵ Also, the Nazirite shall not cut the hair on his head but let it grow long for the duration of the Nazirite vow because he is holy and set apart for Me. ⁶ And the Nazirite shall not go near a corpse during that time, ⁷ even if the dead person is a parent or sibling, lest the Nazirite become ritually impure and ignore the fact of his consecration to God.