Genesis 7:2

God's Word

Take with you seven pairs of every kind of clean animal (a male and a female of each) and one pair of every kind of unclean  animal (a male and a female).

Cross References

Genesis 7:3

Also, take seven pairs of every kind of bird (a male and a female of each) to preserve animal life all over the earth after the flood.

Genesis 7:8

Clean and unclean animals, birds, and creatures that crawl on the ground

Genesis 8:20

Noah built an altar to the Lord. On it he made a burnt offering of each type of clean  animal and clean bird.

Ezekiel 44:23

They must teach my people the difference between what is holy and what is unholy. They must show the people how to tell the difference between what is clean and what is unclean.

Leviticus 10:10

Teach them the difference between what is holy and what is unholy, what is clean and what is unclean.