Flocks and herds need the shepherd's care. They are subject to disease and natural enemies and are short lived, so that however large and strong, and healthy the herd of cattle, or the flock of sheep, it would be soon scattered and lost to the owner without watchful care.
Tools and instruments of production, great or small, if used, soon need to be renewed, or if unused perish even sooner. Neglected they speedily decay. The locomotive left unattended on the track would soon be utterly useless from the destructive elements of rain and heat, frosts and sunshine.
The palace, that floats on the ocean, would be a prey to barnacles, to winds and waves, to shoals and rocks, and would soon disappear, without the constant hand of intelligent vital energy to direct and preserve it. Houses untenanted and uncared for soon decay. Leaks unstopped, broken windows unrepaired, and vermin unrestrained, soon make them unfit for habitation. Farms and plantations go back speedily to weeds and wilderness when uncultivated. Great cities like Babylon and Nineveh are soon so covered with dust that we have to dig to find their ruins.
Decay is written over every form of man-made wealth. There is needed constantly the touch of the laborer for its preservation.
Gold, silver and precious stones are the least subject to decay. They are not, however, made, but found, and simply refined and polished. The indestructibility of silver and gold have made them the money metals of the world, quite as much as their rarity, their beauty and malleability. In them wealth could be stored and moth and rust would not corrupt.
But even gold and silver will disappear. The thief will break through and steal. They must be, therefore, carefully guarded. The tax or levy of the government for its part in the protection must be met, so that even gold and silver must also gradually slip away.
Decay is upon all wealth and the hand of the laborer must be ever present for its preservation.
This law is universal. Even the Divine Creator must continue to uphold his creation. His sustaining hand cannot be withdrawn. He must preserve by his power and ever guide and direct, or disorder and chaos will ensue.
Usury or interest presumes to ignore this order of nature and demands not only that the borrower shall resist this tendency of capital to decay, but shall also pay a price for the privilege.
That any one should undertake to care for and preserve the property of another without compensation is unreasonable, but that any one should voluntarily pay a premium for the privilege can only be explained by misguided judgment or a perverted moral sense.