LEV426 Do not place a stumbling block in front of the innocent. Do not cause harm to a fellow Jew by giving him bad advice. Do just the opposite. Give only good and helpful advice. This prohibition also forbids us to help a fellow Jew to transgress the Torah. [For example, if someone borrows or lends money with interest, he violates the prohibition to lend or borrow with interest. In addition, by simply being a party to such a loan, each party places a “stumbling block” before the other party]. Key concept: So that society prospers and functions as desired, people must give helpful advice to one another.