Exodus 30 Copper sink

Exodus 30
Copper sink
17 And the Lord spoke to Moses, saying:
18 And thou shalt make a copper sink with its copper, to wash; and shall put it between the tent of the congregation and the altar, and put water in it.
19 And Aaron and his sons shall wash their hands and their feet.
20 When you enter the tent of meeting, wash themselves with water, lest they die or when they come near the altar to minister, to burn a food offering to the Lord.
21 So they shall wash for your hands and your feet, lest they die: and that you be a statute forever to him and to his seed throughout their generations.