Exodus 8:26 - Matthew Poole's English Annotations on the Holy Bible

It is not meet, Heb. not right, neither in God's eyes, who hath appointed us the place as well as the thing; nor in the Egyptians eyes, as it follows. The abomination of the Egyptians; that which the Egyptians abhor to kill, or to see killed; as not only Scripture, but profane authors, as Diodorus, and Tully, and Juvenal, witness, because they worshipped them as gods, as is notoriously known. Their fear was just; for when once a Roman had but killed a cat, though imprudently, the people tumultuously met together, and beset his house, and killed him in spite of the king and his princes, who used their utmost power and diligence to prevent it.