Leviticus 19:33-37

19:33 When a foreigner resides with you in your land, you must not oppress him. 19:34 The foreigner who resides with you must be to you like a native citizen among you; so you must love him as yourself, because you were foreigners in the land of Egypt. I am the Lord your God. 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.’”