Leviticus 19:35-37

19:35 You must not do injustice in the regulation of measures, whether of length, weight, or volume. 19:36 You must have honest balances, honest weights, an honest ephah, and an honest hin. I am the Lord your God who brought you out from the land of Egypt. 19:37 You must be sure to obey all my statutes and regulations. I am the Lord.’”