So they shall wash their hands and their feet, lest they die. And it shall be a statute forever to them--to him and his descendants throughout their generations."
Exodus 30:21
Surrounding context
30:20 When they go into the tabernacle of meeting, or when they come near the altar to minister, to burn an offering made by fire to the LORD, they shall wash with water, lest they die.
30:21 So they shall wash their hands and their feet, lest they die. And it shall be a statute forever to them--to him and his descendants throughout their generations."
30:22 Moreover the LORD spoke to Moses, saying: