Synderesis
Synderesis "Synderesis" is a technical term from scholastic philosophy, signifying the innate principle in the moral consciousness of every person which directs the agent to good and restrains him from evil. It is first found in a singe passage of St. Jerome (d. 420) in his explanation of the four living creatures in Ezekiel's vision. Jerome explains that most commentators hold that the human, the lion, and the ox of the vision represent the rational, the irascible, and the appetitive (or concupiscent) parts of the soul, according to Plato's division, while the fourth figure, that of the eagle, represents a fourth part of the soul, above and outside these three: This the Greeks call synderesis, which spark of conscience was not extinguished from the breast of Adam when he was driven from Paradise. Through it, when overcome by pleasures or by anger, or even as sometimes deceived by a similitude of reason, we feel that we sin; ... and this in the scriptures is som...