See Proverbs 11:1 note. People are not to think that trade lies outside the divine law. God has commanded there also all that belongs to truth and right.

All the weights of the bag are his - Alluding, probably, to the standard weights laid up in a bag in the sanctuary, and to which all weights in common use in the land were to be referred, in order to ascertain whether they were just: but some think the allusion is to the weights carried about by merchants in their girdles, by which they weigh the money, silver and gold, that they take in exchange for their merchandise. As the Chinese take no coin but gold and silver by weight, they carry about with them a sort of small steelyard, by which they weigh those metals taken in exchange.

A just weight and balance [are] the LORD'S: all the weights of the bag [are] his (f) work.
(f) If they are true and just, they are God's work, and he delights in it, but otherwise if they are false, they are the work of the devil, and to their condemnation that use them.

A just weight and balance are the Lord's,.... These are of his devising; what he has put into the heart, of men to contrive and make use of, for the benefit of mankind, for the keeping and maintaining truth and justice in commercial affairs; these are of his appointing, commanding, and approving, Leviticus 19:35;
all the weights of the bag are his work; or, "all the stones" (h); greater or smaller, which were formerly used in weighing, and were kept in a bag for that purpose; these are by the Lord's appointment and order. This may be applied to the Scriptures of truth, which are of God; are the balance of the sanctuary, in which every doctrine is to be weighed and tried; what agrees with them is to be received, and what is found wanting is to be rejected. The Targum is,
"his works, all of them, are weights of truth.''
(h) "lapides", Montanus, Vatablus, Piscator, Mercerus, Michaelis.

To observe justice in dealings between man and man is God's appointment.

are the Lord's . . . his work--that is, what He has ordered, and hence should be observed by men.

11 The scale and balances of a right kind are Jahve's;
His work are the weights of the bag.
Regarding פּלס, statera, a level or steelyard (from פּלס, to make even), vid., Proverbs 4:26; מאזנים (from אזן, to weigh), libra, is another form of the balance: the shop-balance furnished with two scales. אבני are here the stones that serve for weights, and כּים, which at Proverbs 1:14 properly means the money-bag, money-purse (cf. Proverbs 7:20), is here, as at Micah 6:11, the bag in which the merchant carries the weights. The genit. משׁפּט belongs also to פּלס, which, in our edition, is pointed with the disjunctive Mehuppach legarme, is rightly accented in Cod. 1294 (vid., Torath Emeth, p. 50) with the conjunctive Mehuppach. משׁפט, as 11b shows, is not like מרמה, the word with the principal tone; 11a says that the balance thus, or thus constructed, which weighs accurately and justly, is Jahve's, or His arrangement, and the object of His inspection, and 11b, that all the weight-stones of the bag, and generally the means of weighing and measuring, rest upon divine ordinance, that in the transaction and conduct of men honesty and certainty might rule. This is the declared will of God, the lawgiver; for among the few direct determinations of His law with reference to trade this stands prominent, that just weights and just measures shall be used, Leviticus 19:36; Deuteronomy 25:13-16. The expression of the poet here frames itself after this law; yet 'ה is not exclusively the God of positive revelation, but, as agriculture in Isaiah 28:29, cf. Sirach 7:15, so here the invention of normative and normal means of commercial intercourse is referred to the direction and institution of God.

The Lord's - Are made by his direction and appointment, so that no man can alter them without violating God's rights and authority.