Deuteronomy 25:14

Overview - Deuteronomy 25
Stripes must not exceed forty.
The ox is not to be muzzled.
Of raising seed unto a brother.
11 Of the immodest woman.
13 Of unjust weights and measures.
17 The memory of Amalek is to be blotted out.
Treasury of Scripture Knowledge

Deuteronomy 25:14  (King James Version)
Thou shalt not have in thine house divers measures, a great and a small.

divers measures
Hebrew an ephah and an ephah.
{Aiphah waiphah;} for this was the cost common measure among the Israelites, by which all the others were made and adjusted. They are not only forbidden to use divers weights and measures, one large or heavy to buy with, and another small and light to sell with, but they were not even allowed to keep such in the house. It is observable also, that these too common but dishonest actions are branded as "an abomination to the Lord," equally with idolatry, and other scandalous crimes.