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Tripping or misdirecting a blind person is a serious transgression, as it says, “You shall not put a stumbling block before the blind. You shall fear your God; I am the Lord” (Leviticus 19:14), and “Cursed be he who misdirects a blind person on his way” (Deuteronomy 27:18). Everyone understands that tripping a blind person is evil. The Torah teaches us it is equally evil to mislead a person in any manner. For example, if an insurance agent or financial advisor persuades someone to invest in a way that is good for the advisor but bad for the client, he or she is transgressing this prohibition (as well as the prohibitions against lying and speaking hurtfully). Also included in this prohibition is causing a person to sin, for example giving non-kosher food to a Jew.
