اَلْخُرُوجُ 30:21

يَغْسِلُونَ أَيْدِيَهُمْ وَأَرْجُلَهُمْ لِئَلَّا يَمُوتُوا. وَيَكُونُ لَهُمْ فَرِيضَةً أَبَدِيَّةً لَهُ وَلِنَسْلِهِ فِي أَجْيَالِهِمْ».

So they shall wash their hands and their feet, that they die not: and it shall be a statute for ever to them, even to him and to his seed throughout their generations.