Exodus 30:17And the LORD spake unto Moses, saying,
Exodus 30:18 Thou shalt also make a laver of brass, and his foot also of brass, to wash withal: and thou shalt put it between the tabernacle of the congregation and the altar, and thou shalt put water therein.
Exodus 30:19 For Aaron and his sons shall wash their hands and their feet thereat:
Exodus 30:20 When they go into the tabernacle of the congregation, they shall wash with water, that they die not; or when they come near to the altar to minister, to burn offering made by fire unto the LORD:
Exodus 30:21 So they shall wash their hands and their feet, that they die not: and it shall be a statute for ever to them, even to him and to his seed throughout their generations.
Exodus 38:8 And he made the laver of brass, and the foot of it of brass, of the looking glasses of the women assembling, which assembled at the door of the tabernacle of the congregation.
The laver was made of brass, the combination of two metals, copper and tin which together make one metal symbolize the melding together of Jesus' divine and human natures i.e. inseparable.