Precision Matters

...Stay away from doubt; and do not accustom yourself to tithe by estimation.
— Raban Gamliel, Ethics of the Fathers 1:16

In our transactional consumer culture, we have come to expect less and less from companies that are trying to sell us something, which seems to be just about everyone today. Online transactions can make anyone a clothing merchant or a taxi driver. We want to believe everyone is trustworthy, but it's become harder and harder. We use car mechanics, lawyers and doctors and anyone else with specialized knowledge hoping that they are straight with us about repairs, billable hours and the tests we need.

The Talmud spends pages and pages debating exacting standards with weights and measures, following the biblical dictum of Leviticus: "You shall do not wrong in judgment, in measurement of capacity. You shall have just balances, just weights..." (Leviticus 19: 35-36). Precision measuring makes for honest business, and nothing less will do. The Talmud lauds Rabbi Safra, saying that he fulfilled the verse in Psalms to "speak truth in his heart" (15:2) because he held himself accountable to what he thought but did not say during his negotiations. In the statement above, we want to make sure people are precise with their charitable giving as well.

In Deuteronomy, we read: "You shall not have in your bag differing weights, a large and a small. You shall not have in your house differing measures, a large and a small. You shall have a full and just weight; you shall have a full and just measure, that your days may be prolonged in the land which the Lord, your God, gives you" (25:13-16). Market cheats had stones of differing weight in their pockets or bags that looked the same to deceive customers. It was a repugnant practice, and we have admonitions throughout the Hebrew Bible against what must have been common practice:

  • "Hear this, you who trample the needy, to do away with the humble of the land, saying, 'When will the new moon be over, to that we may sell grain, and the Sabbath, that we may open the wheat market, to make the bushel smaller and the shekel bigger.' And to cheat with dishonest scales, so as to buy the helpless for money and the needy for a pair of sandals, and that we may sell the refuse of the wheat?" (Amos 8:4-6)
  • "Thus says the Lord, God, 'Enough, you princes of Israel; put away violence and destruction, and practice justice and righteousness Stop your expropriations from My people,' declares the Lord God. "'You shall have just balances, a just ephah and a just bath.'" (Ezek 45:9-10)
  • "Differing weights and differing measures, both of them are abominable to the Lord." (Prov. 20:10)
  • "A false balance is an abomination to the Lord, but a just weight is His delight." (Prov. 11:1)
  • "Is there yet a man in the wicked house, along with treasures of wickedness and a short measure that is cursed? Can I justify wicked scales and a bag of deceptive weights?" (Micah 6: 10-11)

The sages of the Talmud assess some of these verses for practical teachings and discuss the very minutiae of using weights accurately, like how often a measuring vessel should be cleaned to assure that residue does not add any additional weight or how to ensure that the small deposits in the scale's pan in a liquid measure be tipped appropriately in the buyer's favor since even this small amount was measured out for him. Market inspectors need to check regularly for accuracy of measures.

Most significantly, they wanted to demonstrate how important this commandment is to preserving the integrity of the land and the nation. Rabbi Levi suggests that falsifying weights and measures deserves a greater punishment than forbidden sexual relations. One reason provided is that regarding a breach with another human being, "there is repentance." When a person cheats strangers again and again, there is no way to achieve repentance because you cannot compensate or apologize to all your customers (BT Bava Batra 88b). Lastly, the Talmud states that it is worse to rob human beings than to rob God - like withholding a gift from the Temple.

The verses in Leviticus and Deuteronomy stress both God and the land of Israel to demonstrate that a person may try to deceive another, but God's watchful eye is ever present. When the Israelites made their desert trek, God wanted them to know that the country they were inheriting needed to uphold a high moral standard or it would reject their residency. Precision in weights and measures is a small, everyday behavior to build a community of trust and a reputation as a place where ethics reigns. People who measure meticulously, especially when others don't, role model integrity, as we read in Proverbs 16:11: "A just balance and scales belong to the Lord; all the weights of the bag are His concern."

Shabbat Shalom