Exodus 30:21

“So they shall wash their hands and their feet, that they die not, etc.] By the immediate hand of God, who would so greatly resent such a neglect of his command; and by how much easier it was to perform it, by so much the more were they inexcusable, and to be treated with greater severity; and this is repeated, that they might carefully observe it, lest they perish: and it shall be a statute for ever to them, [even] to him and to his seed, throughout their generations; to be observed by Aaron and his descendants in all ages, as long as their priesthood lasted, until the Messiah should come, and wash all his people, his priests, with his own blood, from all their sins, (<660105>Revelation…”

“Exodus 38:8. The bronze for the “Laver of brass” and its foot was supplied from the bronze mirrors of the women who voluntarily gave up these articles of luxury. Bronze mirrors were much used by the ancient Egyptians. No hint is given as to the form of the laver. The brazen sea and the ten lavers that served the same purpose in the temple of Solomon, were elaborately worked in artistic designs and are minutely described 1 Kings 7:23-29. Exodus 30:19 Wash their hands and their feet - On certain solemn occasions he was required to bathe his whole person Exodus 29:4; Leviticus 16:4. The laver must also have furnished the water for washing those parts of the victims that needed cleansing…”

“a statute: Exo 28:43 Exodus 30:23”