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Commandment #410 · Negative #410

Do Not Use False Weights and Measures

לֹא תַעֲשֶׂה עָוֶל בְּמִדָּה
Leviticus 19:35 · Social & Ethical Laws
לֹא תַעֲשׂוּ עָוֶל בַּמִּשְׁפָּט בַּמִּדָּה בַּמִּשְׁקָל וּבַמְּשׂוּרָה
“Do not use dishonest standards when measuring length, weight or quantity.”

Avel in the Marketplace — The Same Root as the Courthouse

Lev 19:35: “Do not use dishonest standards when measuring length, weight or quantity. Use honest scales and honest weights, an honest ephah and an honest liquid measure.” Lev 19:36: “I am the LORD your God, who brought you out of Egypt.” The word that opens the prohibition is avel (עָוֶל) — the same word used in Lev 19:15: “Do not pervert justice (avel) in judgment.” The Torah's deliberate use of the same root in both contexts is not incidental. A false scale and a false verdict are the same moral act: the distortion of the true measure of something for the benefit of the one who controls the measuring instrument.

The connection is structural. In court, the judge controls the measuring instrument (the verdict); in commerce, the merchant controls the measuring instrument (the scale). When either party manipulates their instrument, the person on the receiving end gets less than what reality says they deserve. Whether the victim loses their property rights (in court) or their purchase value (in commerce), the mechanism of the wrong is identical: avel — the crooked distortion of truth.

Amos's Merchants — Commercial Fraud at Scale

Amos 8:5: “When will the new moon be over, that we may sell grain? And the Sabbath, that we may offer wheat for sale, that we may make the ephah small and the shekel great and deal deceitfully with false balances?” Amos captures the merchants' internal monologue: impatient with the Sabbath, eager to return to the commerce where they systematically defraud customers. The “small ephah” delivers less product than promised; the “large shekel” charges more than the standard rate. The “false balances” — the tilted scale — execute both frauds simultaneously.

The merchants Amos describes operate within the legal commercial system. They are not thieves in the night; they are vendors in the market, using instruments that appear legitimate but are calibrated to steal. The prohibition in Lev 19:35 addresses exactly this: the commercial fraud that looks like a transaction but is in fact a taking, conducted under the cover of weights and measures that the buyer cannot verify.

Commercial Integrity as a Condition of the Land

Deut 25:15: “You shall have only a full and fair weight, a full and fair measure, that your days may be long in the land that the LORD your God is giving you.” Deut 25:16: “For all who do such things, all who act dishonestly, are an abomination to the LORD your God.” The Torah connects honest measurement not merely to individual ethics but to the community's tenure in the land. Commercial integrity is a condition of dwelling safely — the abomination (to'evah) of false weights threatens the covenant itself.

Micah 6:11: “Shall I acquit a man with dishonest scales, with a bag of false weights?” The prophet frames the question rhetorically: God cannot acquit what God has prohibited. The merchant who maintains honest weights expresses covenant faithfulness; the one who keeps false weights has placed profit above the divine standard. Commercial relationships built on false measures are a form of the same broken covenant that produces unjust courts and oppressed poor.

◆ Study Questions
What three measurements does the Torah name as subject to this commandment — and what phrase does God use to close it?
“Ye shall do no unrighteousness in judgment, in meteyard, in weight, or in measure. Just balances, just weights, a just ephah, and a just hin, shall ye have.”
What did Amos see Israelites doing while counting the minutes until the Sabbath ended — revealing that dishonest weights and Sabbath observance were happening simultaneously?
“When will the new moon be gone, that we may sell corn? and the sabbath, that we may set forth wheat, making the ephah small, and the shekel great, and falsifying the balances by deceit.”
Amos 8:5
How did Proverbs name dishonest scales using the strongest condemnation word in the Torah — the same word used for the most severe cultic violations?
“A false balance is abomination to the LORD: but a just weight is his delight.”
Prov 11:1
What did Micah say God required of Israel — summing up the commandments about marketplace dealings in three paired phrases?
“He hath shewed thee, O man, what is good; and what doth the LORD require of thee, but to do justly, and to love mercy, and to walk humbly with thy God?”
Mic 6:8

Read the source passage in the Torah reader.

Read in the Torah Reader — Leviticus 19:35