Thomas Aquinas on Usury

“Now what has been said about the Jews is also to be understood about Cahorsins, and anyone else depending upon the depravity of usury.”

“It would be better if they [rulers] compelled the Jews to work for their living, as they do in parts of Italy, than that, living without occupation, they can grow rich only by usury (solis usuris ditentur).”

“Since the Jews may not licitly keep those things which they have extorted from others through usury, the consequence is also that if you [rulers] receive these things from them, neither may you licitly keep them.”