Exodus 40:29-33

And he set the altar of burnt offering in front of the doorway of the tabernacle of the tent of meeting, and offered on it the burnt offering and the meal offering, just as the Lord had commanded Moses.

He placed the basin between the tent of meeting and the altar, and put water in it for washing.

From it Moses and Aaron and his sons washed their hands and their feet.

When they entered the tent of meeting, and when they approached the altar, they washed, just as the Lord had commanded Moses.

And he erected the courtyard all around the tabernacle and the altar, and hung up the curtain for the gate of the courtyard. So Moses finished the work. The Glory of the Lord