Numbers 6:5-9

Leeser(i) 5 All the days of the vow of his abstinence no razor shall pass over his head: until the days be completed, in which he abstaineth in honor of the Lord, shall he be holy, letting grow untouched the hair of his head. 6 All the days of his abstinence in honor of the Lord shall he not come near any dead body. 7 On his father, or on his mother, on his brother, or on his sister, shall he not make himself unclean, when they die; because the consecration of his God is upon his head. 8 All the days of his abstinence is he holy unto the Lord. 9 And if some one die very suddenly by him, and he thus defile his consecrated head: then shall he shave his head on the day of his being cleansed, on the seventh day shall he shave it.