Genesis 7:2
Of all clean beasts take unto thee seven of every kind, the male and his female, and of unclean beasts a pair, the male and his female:
Genesis 8:20
And Noah made an altar unto the LORD, and took of all manner of clean beasts and all manner of clean fowls, and offered sacrifice upon the altar.
Leviticus 11:1-47
And the LORD spake unto Moses and Aaron, saying,
Genesis 7:8
And of clean beasts and of beasts that were unclean and of birds and of all that creepeth upon the earth,
Leviticus 10:10
that ye may put difference between holy and unholy, and between unclean and clean,
Genesis 6:19-21
"And of all that liveth, whatsoever flesh it be, shalt thou bring into the ark, of every thing a pair, to keep them alive with thee.
Deuteronomy 14:1-21
Ye are the children of the LORD your God; cut not yourselves nor make you any baldness between the eyes for any man's death.
Ezekiel 44:23
They shall show my people the difference between the holy and unholy, betwixt the clean and unclean.
Acts 10:11-15
and saw heaven opened, and a certain vessel come down unto him, as it had been a great sheet, knit at the four corners, and was let down to the earth,