6 “With men that work wickedness.” What wickedness? Let me mention some sinful wickedness of theirs. Let me tell you one open sinful wickedness, which they acknowledge. They say, it is better for a man to be an usurer than a husbandman. Thou ask the reason, and they assign one....He vexes the members of Christ, who cleanses the earth with a furrow: he vexes the members of Christ, who pulls grass from the earth: he vexes the members of Christ, who plucks an apple from a tree.
To avoid committing their imaginary murders in the farm, he commits real murders in usury. He deals no bread to the needy. See whether there can be greater unrighteousness than this righteousness. He deals not bread to the hungry. You ask, why? Lest the beggar receive the life which is in the bread, which they call a member of God, the substance of God, and bind it in flesh. What then are you doing? Why do you eat? Have you not flesh? Yes; but we, they say, forasmuch as we are enlightened by faith in Manes, by our prayers and our Psalms, forasmuch as we are elect, we cleanse thereby that bread, and transmit it into the treasure-house of the heavens.
Such are the elect, that they are not to be saved by God, but saviours of God. And this is Christ, they say, crucified in the whole universe. I received in the Gospel Christ a Saviour, but you are in your books the saviours of Christ. Plainly you are blasphemers of Christ, and therefore not to be saved by Christ. Therefore lest a crumb be given to the hungry, and in the crumb a member of Christ suffer, is the hungry to die of hunger? False mercy to a crumb causes true murder of a man. But who are their elect? “Turn not thou aside, my heart, to wicked words, and I will not unite with their elect.”
Source: The Enarrations, or Expositions, on the Psalms (New Advent)