The exchangers - The “exchangers” were persons who were in the habit of borrowing money, or receiving it on deposit at a low rate of interest, to be loaned to others at higher interest. They commonly sat by “tables” in the temple, with money ready to exchange or loan. See Matthew 21:12. This money was left with the servant, not to exchange, nor to increase it by any such idle means, but by honest industry and merchandise; but since he was too indolent for that, he ought at least to have loaned it to the exchangers, that his master might have received some benefit from it.
With usury - With interest, increase, or gain. The word “usury,” in our language, has a bad signification, meaning unlawful or exorbitant interest. This was contrary to the law, Exodus 22:25; Leviticus 25:36. The original means “gain,” increase, or lawful interest.