The LORD spoke to Moses, saying,
"You shall also make 1a laver of bronze, with its base of bronze, for washing; and you shall 2put it between the tent of meeting and the altar, and you shall put water in it.
References for Exodus 30:18
"Aaron and his sons shall 3wash their hands and their feet from it;
References for Exodus 30:19
when they enter the tent of meeting, they shall wash with water, so that they will not die; or when they approach the altar to minister, by offering up in smoke a fire sacrifice to the LORD.
"So they shall wash their hands and their feet, so that they will not die; and 4it shall be a perpetual statute for them, for Aaron and his descendants throughout their generations."
References for Exodus 30:21