Leviticus 15:21
Book: Leviticus 15
And whosoever toucheth her bed shall wash his clothes, and bathe himself in water, and be unclean until the even.
Exodus 13:21
Book: Exodus 13
And Jehovah went before them by day in a pillar of cloud, to lead them the way, and by night in a pillar of fire, to give them light; that they might go by day and by night: