(Proverbs 20:23 KJV) Divers weights are an abomination unto the LORD; and a false balance is not good.
In some places the Bible deals with mystical concepts that will not be totally understood in this life such as the trinity. Who knows, maybe we will not even be able to understand it when Jesus is in the pulpit. At the other end you have simple, easy to understand directions such as the Ten Commandments that tell us not to lie, steal and commit adultery. Here is another clear demand for people who follow Jesus: Be honest in your business dealings.
It is really simple. We want to cloud the issue with contracts and lawyer talk. We want to set up all kind of “situations” that we might face. The principle is simple. If you say a dollar an ounce then make sure the dollar is good and the ounce is an ounce. There is no wiggle room.
So? Selling a house? Selling a car? Borrowing money? Keep in mind that before you have your lawyer check the wording, God has already made a decision on your willingness to live in righteousness. His opinion is the one that matters.