Neither for his father nor for his mother, nor for brother or sister, if they die, shall he make himself unclean; because his separation to God is upon his head.
And there were certain men who were unclean through touching the dead body of a man, so that they could not keep the passover on that day; and they came before Moses and Aaron on that day;
They shall not defile themselves by going near to a dead person; however, for father or mother, for son or daughter, for brother or unmarried sister they may defile themselves.