Exodus 40:31-33

Young's Literal Translation

³¹ and Moses and Aaron and his sons have washed their hands and their feet at the same;

³² in their going in unto the tent of meeting, and in their drawing near unto the altar, they wash, as Jehovah hath commanded Moses.

³³ And he raiseth up the court round about the tabernacle, and about the altar, and placeth the covering of the gate of the court; and Moses completeth the work.