Exodus 40:31

31 Moses and Aaron and his sons washed their hands and feet there.

Exodus 40:31 Meaning and Commentary

Exodus 40:31

And Moses, and Aaron, and his sons, washed their hands and
their feet thereat.
] This laver was for the priests, and Moses, officiating as a priest, washed in it, with Aaron, and his sons, whom he was now about to consecrate to the priest's office, and invest with it by offering sacrifice for them; Jarchi says this was on the eighth day of the consecration.

Exodus 40:31 In-Context

29 He set the Altar of Whole-Burnt-Offering at the door of The Dwelling, the Tent of Meeting, and offered up the Whole-Burnt-Offerings and the Grain-Offerings, just as God had commanded Moses.

30 He placed the Washbasin between the Tent of Meeting and the Altar, and filled it with water for washing.

31 Moses and Aaron and his sons washed their hands and feet there.

32 When they entered the Tent of Meeting and when they served at the Altar, they washed, just as God had commanded Moses.

33 Finally, he erected the Courtyard all around The Dwelling and the Altar, and put up the screen for the Courtyard entrance. Moses finished the work.