The Wolf in Sheep's Clothing
A Wolf clothing himself in the skin of a Sheep, and getting in among the flock, by this means took the opportunity to devour many of them. At last, the Shepherd discovered him, and cunningly fastened a rope about his neck, tying him up to a tree which stood hard by.
Some other Shepherds happening to pass that way, and observing what he was about, drew near, and expressed their wonder at it. "What," says one of them, "Brother, do you hang Sheep?" "No," replies the other; "I hang a Wolf whenever I catch him, though in the habit and garb of Sheep." Then he showed them their mistake, and they applauded the justice of the execution.
Those who try to seem what they are not will not always thereby escape the punishment of what they are.