Exodus 2:5

2:5 Then the daughter of Pharaoh came down to wash herself by the Nile, while her attendants were walking alongside the river, and she saw the basket among the reeds. She sent one of her attendants, took it,

Exodus 30:20-21

30:20 When they enter the tent of meeting, they must wash with water so that they do not die. Also, when they approach the altar to minister by burning incense as an offering made by fire to the Lord, 30:21 they must wash their hands and their feet so that they do not die. And this will be a perpetual ordinance for them and for their descendants throughout their generations.”