What He says, “The good man out of the good treasure of his heart, &c.” is either pointed against the Jews, that seeing they blasphemed God, what treasure in their heart must that be out of which such blasphemy proceeded; or it is connected with what had gone before, that like as a good man cannot bring forth evil things, nor an evil man good things, so Christ cannot do evil works, nor the Devil good works.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).
