The disease of jealously is so malignant that is converts all it takes into its own nourishment. — Joseph Addison
In Judaism there’s a concept of an “evil eye.” An evil eye is when someone looks upon another in some negative fashion. This is most commonly the result of jealousy.
Rabbeinu Bechaye on Genesis 30:38 (Vayetze) discusses the destructive power of such jealousy, how people can unwittingly bring it upon themselves, and how it can attack and damage even the most miraculous interventions.
The first example is Jacob’s wife Leah, who upon giving birth to Judah, her fourth child, thanks God (Judah’s name is actually based on the Hebrew word Thanks). Rabbeinu Bechaye explains that because of Leah’s gratitude for a greater portion of children of what she knew was prophesized for Jacob, the evil eye immediately fell upon her, and she was stopped (temporarily) from having further children.
The second example was the descendants of Joseph, who declared proudly their blessing of being a numerous people. After that statement Joshua directs them to go to the forest. The sages interpret the passage to mean a command for them to go to the forest to hide from the evil eye.
The most glaring example was the actual Revelation at Mount Sinai and the delivery of the Ten Commandments upon the Tablets of the Law. It was given with incredible fanfare, lightning, thunder and Shofar blasts. Rabbeinu Bechaye explains that the evil eye immediately fell upon the event, which led in turn to the breaking of the Tablets shortly thereafter. When the second set of Tablets was given quietly, inconspicuously, no evil eye fell upon the event. The second set of Tablets was never destroyed.
Finally, Jacob, who was attuned to the concept of the evil eye, in his efforts to increase his herd, utilized strategies that would be perceived as natural, to hide what he understood was the miraculous intervention he knew was taking place. His low-key understated work efforts hid what was truly going on from onlookers and protected him from the evil eye.
Rabbeinu Bechaye warns that “the power of the evil eye is so great that it can affect even things that miracles touch.”
May we beware of jealousy in all its forms and reduce our chances of attracting it.
To the Krieger and Silverman families for their blessed hospitality. May the evil eye never enter their homes.