I think you are mistaken. It is a criticism on Jesus himself.
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These people are just merchants selling animals, and serving as an currency exchange market. It is a trading floor just like WTC.
Also, why are they trading the coins? It is for Jesus's father. Why are they buying the animals? It is because the old testament requires them. If they ain't doing it inside, they will be doing it outside.
You must note that if God said clearly that it is ok to offer anything to him, there will be no trade. If he wants an animal slaughtered to please him, there will always be people who sell that animal (because not everyone grows one)
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Now what evidence do you have of them selling inferior goods?
You have make many claim, where is your evidence?
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It is useless to study in theology to begin with. Making a certification system for a useless subject is equally meaningless.