Exodus 30:17 bbe — And the Lord said to Moses,

Everyone who is numbered, from twenty years old and over, is to give an offering to the Lord.

The man of wealth is to give no more and the poor man no less than the half-shekel of silver, when the offering is made to the Lord as the price for your lives.

And you are to take this money from the children of Israel to be used for the work of the Tent of meeting, to keep the memory of the children of Israel before the Lord and to be the price of your lives.

You are to make a brass washing-vessel, with a brass base; and put it between the Tent of meeting and the altar, with water in it;

That it may be used by Aaron and his sons for washing their hands and feet;

Whenever they go into the Tent of meeting they are to be washed with water, to keep them from death; and whenever they come near to do the work of the altar, or to make an offering by fire to the Lord,