ユダヤ教徒にとって唯一の許された職業が、キリスト教徒から忌み嫌われていた利子を取り扱う職業＝高利貸し（質屋）や金槐の保管人、両替商（貿易決済業）などでした。
Saved by hisayoshi tamada
ユダヤ教徒にとって唯一の許された職業が、キリスト教徒から忌み嫌われていた利子を取り扱う職業＝高利貸し（質屋）や金槐の保管人、両替商（貿易決済業）などでした。
With debt came the notion of the value of time, and with this came the concept of the price of money: the rate of interest.
David McWilliams • Money: A Story of Humanity
Powerless, stateless and often living under conditions of great poverty, Jews throughout the centuries of their dispersion created a communal equivalent of a welfare state. They did so voluntarily, because it was a mitzvah (religious deed), because it is what Jews do, and because they knew that no one else would do it for them.