Aesop's Fables were written around 600 B.C., containing popular insights well worth remembering. For example, the term "sour grapes" applies to someone who complains after he loses, based on Aesop's fable about the fox unable to reach grapes. Aesop was smart enough to know that foxes are the only canines that like grapes. All the Fables are now available for easy access online.
One of Aesop's Fables is "The Wolf in Sheep's Clothing," which conveys a message about the harmful power of deceit:
|“||A Wolf found great difficulty in getting at the sheep owing to the vigilance of the shepherd and his dogs. But one day it found the skin of a sheep that had been flayed and thrown aside, so it put it on over its own pelt and strolled down among the sheep. The Lamb that belonged to the sheep, whose skin the Wolf was wearing, began to follow the Wolf in the Sheep's clothing; so, leading the Lamb a little apart, he soon made a meal off her, and for some time he succeeded in deceiving the sheep, and enjoying hearty meals.||”|
As Greeks and other Gentiles learned insights from Aesop's Fables like the one above, Jewish and Christian warnings about the deceit of the devil became even easier to understand and accept.