Exodus 40:29-33

29And he put the altar of burnt offering before the door of the tabernacle of the tent of meeting, and offered upon it the burnt offering and the grain offering, as the Lord had commanded Moses.

30He set the laver between the tabernacle of meeting and the altar, and put water there for washing;

31and Moses, Aaron, and his sons would wash their hands and their feet with water from it.

32Whenever they went into the tabernacle of meeting, and when they came near the altar, they washed, as the Lord had commanded Moses.

33And he raised up the court all around the tabernacle and the altar, and hung up the screen of the court gate. So Moses finished the work.