Thou shalt not have in thine house divers measures, a great and a small. Divers measures - Literally, an ephah and an ephah; one large, to buy thy neighbor's wares, another small, to sell thy own by. So there were knaves in all ages, and among all nations. See the notes on Exodus 16:16, and Leviticus 19:35 (note).
Related Commentaries of Deuteronomy 25:14
Deuteronomy 25:14
14 Thou shalt not have in thine house divers measures, a great and a small.