Genesis 7:2
Of all clean beasts thou shalt take to thee by sevens, a male and its female; but of the beasts that are not clean two, a male and its female.
Genesis 8:20
And Noah built an altar to Jehovah; and took of every clean animal, and of all clean fowl, and offered up burnt-offerings on the altar.
Leviticus 11:1-47
And Jehovah spoke to Moses and to Aaron, saying to them,
Genesis 7:8
Of clean beasts, and of beasts that are not clean, and of fowl, and of everything that creeps on the ground,
Leviticus 10:10
that ye may put difference between the holy and the unholy, and between unclean and clean,
Genesis 6:19-21
And of every living thing of all flesh, two of every sort shalt thou bring into the ark, to keep them alive with thee: they shall be male and female.
Deuteronomy 14:1-21
Ye are sons of Jehovah your God: ye shall not cut yourselves, nor make any baldness between your eyes for a dead person.
Ezekiel 44:23
And they shall teach my people the difference between holy and profane, and cause them to discern between unclean and clean.
Acts 10:11-15
and he beholds the heaven opened, and a certain vessel descending, as a great sheet, bound by the four corners and let down to the earth;