Genesis 6:19

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.

Genesis 7:2-3

Of every clean beast thou shalt take to thee by sevens, the male and his female: and of beasts that are not clean by two, the male and his female.

Genesis 7:8-9

Of clean beasts, and of beasts that are not clean, and of fowls, and of every thing that creepeth upon the earth,

Genesis 7:15-16

And they went in unto Noah into the ark, two and two of all flesh, wherein is the breath of life.

Genesis 8:17

Bring forth with thee every living thing that is with thee, of all flesh, both of fowl, and of cattle, and of every creeping thing that creepeth upon the earth; that they may breed abundantly in the earth, and be fruitful, and multiply upon the earth.

Psalm 36:6

Thy righteousness is like the great mountains; thy judgments are a great deep: O LORD, thou preservest man and beast.

Treasury of Scripture Knowledge

Summary

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.

Bible References

Two

Genesis 7:2
Of every clean beast thou shalt take to thee by sevens, the male and his female: and of beasts that are not clean by two, the male and his female.
Genesis 8:17
Bring forth with thee every living thing that is with thee, of all flesh, both of fowl, and of cattle, and of every creeping thing that creepeth upon the earth; that they may breed abundantly in the earth, and be fruitful, and multiply upon the earth.
Psalm 36:6
Thy righteousness is like the great mountains; thy judgments are a great deep: O LORD, thou preservest man and beast.

King James Version Public Domain