He shall not make himself unclean for his father, or for his mother, or for his brother, or for his sister, when they die, because his separation to his God is upon his head.
And he shall not come near any dead person to defile himself; but they may defile themselves for father, or for mother, or for son, or for daughter, for brother, or for sister who has had no husband.
And there were certain men who were defiled by the dead body of a man, so that they could not prepare the Passover on that day. And they came before Moses and before Aaron on that day.