Leviticus 15:16
Book: Leviticus 15
And if any man's seed of copulation go out from him, then he shall bathe all his flesh in water, and be unclean until the even.
Exodus 17:6
Book: Exodus 17
Behold, I will stand before thee there upon the rock in Horeb; and thou shalt smite the rock, and there shall come water out of it, that the people may drink. And Moses did so in the sight of the elders of Israel.