Definitions

Definition.—The distinction of good and bad conscience is applied both to consequent and antecedent conscience (see 576).

(a) The consequent conscience is good, and one is said to have a good conscience, if it testifies that past acts were rightly performed, that past sins were forgiven, that one is in the friendship of God, etc.; “The end of the commandment is charity from a good conscience” (I Tim., i. 5); “War a good warfare, having faith and a good conscience” (ibid., 19). The consequent conscience is bad if it testifies in a contrary way: “Let us draw near with a true heart, having our hearts sprinkled from an evil conscience” (Heb., x. 22).

(b) The antecedent conscience, with which we are now concerned, judges about the morality of an act to be performed here and now, or in the future. It is called good, if it is made by one who is in good faith—that is, one who sincerely loves goodness and who decides according to the truth as far as he is able to see it. It is called bad, if it is the judgment of one who is in bad faith—that is, one who is in error through his own fault, or who arrives at the truth by reasonings that are not honest or not understood by him. Example: Speaking of those who, though fearing that idol meats were forbidden, yet ate of them because they saw others do this, St. Paul says: “There is not knowledge in everyone. For some until this present, with conscience of the idol, eat as a thing sacrificed to an idol, and their conscience being weak is defiled” (I Cor., viii. 7).