Leviticus 10:10

Overview - Leviticus 10
1	Nadab and Abihu, for offering strange fire, are burnt by fire.
6	Aaron and his sons are forbidden to mourn for them.
8	The priests are forbidden wine when they are to go into the tabernacle.
12	The law of eating the holy things.
16	Aaron's excuse for transgressing thereof.

Leviticus 10:10  (King James Version)
And that ye may put difference between holy and unholy, and between unclean and clean;