Unjust weights and measures. What exactly are these?

I don’t know about you but when I read passages like these, I just get so confused. I recently finished all the 5 books of Moses, and noticed a connection between the Proverbs and those books when I read it! Despite that, it still left me confused. Check this out:

Leviticus 19:35-36You shall do no wrong in judgment, in measurement of weight, or capacity. ³⁶ You shall have just balances, just weights, a just ephah (a dry measure), and a just hin (liquid measure); I am the Lord your God, who brought you out from the land of Egypt.

Deuteronomy 25:13-16
“ You shall not have in your bag differing weights, a large and a small. ¹⁴ You shall not have in your house differing measures, a large and a small. ¹⁵ You shall have a full and just weight; you shall have a full and just measure, that your days may be prolonged in the land which the Lord your God gives you. ¹⁶ For everyone who does these things, everyone who acts unjustly is an abomination to the Lord your God. 

Proverbs 20:10
Differing weights and differing measures,
Both of them are abominable to the Lord

Proverbs 20:23
Differing weights are an abomination to the Lord,
And a false scale is not good

Micah 6:11
“Can I justify wicked scales
And a bag of deceptive weights?

Understanding it better
There are a few things to note about these passages:

1) An ephah was a dry measure having the capacity of about 3/5 of a bushel or about 22 liters. A hin was a liquid measure having the capacity of about 1 gallon or about 3.8 liters (Lev 19:36).

2) Stone and a stone, meaning the weights were made of stone, and some had two sets of stones, a light and a heavy. With the latter they bought their wares, by the former they sold them.

We still say, that such a commodity is worth so much per stone, a stone being of such a weight; now these were not to be different:

A great and a small; great weights, to buy with them, and small weights, to sell with them. In a sense, the weight of the stone would determine the price of the product. You could only buy with heavier stones and sell with lighter ones so that the difference in weight could accurately determine the price for that product.

Integrity in business
Thou shalt not have  divers weights. Weights were anciently made of stone and are frequently used still by Eastern shopkeepers and traders, who take them out of the bag and put them in the balance. The man who is not cheated by the trader and his bag of divers weights must be blessed with more acuteness than most of his fellows.

God blesses honesty. As long as there is no extortion, bribery, mischief, deceit or flattery, then your business will grow and you will prosper. Consider these passages:

Proverbs 16:11
Honest scales and balances belong to the Lord;
All the weights in the bag are of his making.

Proverbs 11:1
The Lord detests dishonest scales,
but accurate weights find favor with him

So when we do business we must be honest and careful to conduct everything with purity of heart so that through that we can grow in our knowledge of the Lord. It all depends on who He is to us. To me, God is the chairman of the board, Jesus is CEO and the Holy Spirit is the chief counsel. The best way to do business God’s way is to involve Him in our business everyday!