Read the directions that were given to Moses to be made known to the children of Israel as God was about to come down upon the mount to speak in their hearing His holy law. What did He command Moses to have the people do? To be ready against the third day; for on the third day, said He, the Lord will come down upon the mount in the sight of all the people. They were to set bounds about the mount. “And the Lord said unto Moses, Go unto the people, and sanctify them today and tomorrow, and let them wash their clothes.” That great and mighty God who created the beautiful Eden and everything lovely in it is a God of order, and He wants order and cleanliness with His people. That mighty God directed Moses to tell the people to wash their clothes lest there should be impurity in their clothing and about their persons as they came up before the Lord. And Moses went down from the mount unto the people, and they washed their clothes, according to the command of God. (2T 611.1) MC VC

And to show how careful they were to be in regard to cleanliness, Moses was to put a laver between the tent of the congregation and the altar, “and put water there, to wash withal.” And Moses and Aaron, and Aaron’s sons that ministered before the Lord, were to wash their hands and their feet thereat when they went into the tent of the congregation, and when they went in before the Lord. (2T 611.2) MC VC