4.
“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. Of fowls after their kind, and of cattle after their kind, of every creeping thing of the earth after his kind; two of every sort shall come unto thee” (Gen. vi, 19, 20).
“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. Of fowls also of the air by sevens, the male and the female” (vii, 2, 3).
Referring to the above, the celebrated Jewish commentator, Dr. Kalisch, says: “Noah was commanded to take into the ark seven pairs of all clean, and one pair of all unclean, animals, whereas he had before been ordered to take one pair of every species, no distinction whatever between clean and unclean animals having been made.... We do not hesitate to acknowledge here the manifest contradiction.”