The Lord's Servant, What a Contrast
The use of counterfeit money is a serious crime and is costly for merchants and consumers. In our present day we have scanners, Dri-Mark Tri Tests, black lights, and other methods for determining the authenticity of a bill. But it used to be done by a close visual inspection. This was done by not only being aware of counterfeit attempts, but also by becoming very familiar with a genuine bill through a meticulous inspection of the real thing. It is by way of contrast that counterfeits are exposed. Indeed we often learn by contrast.