Exodus 30:19 KJV
For Aaron and his sons shall wash their hands and their feet thereat:
Exodus 30:19, King James Version
In context
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.
19 For Aaron and his sons shall wash their hands and their feet thereat:
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: