Leviticus 19:36

“You shall not have in your bag differing weights, a large and a small.

and with the showbread, and the fine flour for a grain offering, and unleavened wafers, or what is made on the griddle, or what is well stirred, and all measures of volume and size.

A deceptive balance is an abomination to Yahweh, But a just weight is His delight.

“You shall have just balances, a just ephah, and a just bath.

“Can I purify wicked scales And a bag of deceptive weights?

So I said, “What is it?” And he said, “This is the ephah going forth.” Again he said, “This is their appearance in all the land