God's Law
Individuals are free to decide between themselves what medium of exchange they are going to use (or barter goods), with no government coercion to use certain “legal tender.” The government doesn’t control the currency, and there is no central bank with the exclusive privilege to have a monopoly on money and credit. Arbitrary creation of money supply (inflation) and fractional reserve banking (arbitrary extension of credit, and therefore more inflation) are criminalized; thus, banking cartels can’t manipulate the economy and corporations can’t get a market edge over their smaller competitors by easier access to newly created money or credit. Entrepreneurship at all levels flourishes, and individuals are free to prosper and grow according to their abilities and work ethic.
Man's Law
A small elite of bankers and politicians, using the coercive power of the state, forces everyone in the economy to use one currency only (“legal tender laws”), and then destroys that currency debasing its value to reflect only the decisions of the social planners. The market is left to the mercy of those who “produce” the currency, and to their clients – the corporations who get early access to the newly created currency. Once such monopolistic position is achieved, the central banks break even their own rules with impunity, effectively destroying the efforts of smaller entrepreneurs on the market in favor of the establishment’s elite.