Rabbi Eliezer the Great taught that the Torah warns against wronging a stranger (, "ger") in 36, or others say 46, places (including and ). The Gemara went on to cite Rabbi Nathan's interpretation of "You shall neither wrong a stranger, nor oppress him; for you were strangers in the land of Egypt," to teach that one must not taunt one's neighbor about a flaw that one has oneself. The Gemara taught that thus a proverb says: If there is a case of hanging in a person's family history, do not say to the person, "Hang up this fish for me."