The Necessity of Scripture in Justifying Logic
By: Ronald W. Di Giacomo

Since no man has observed every instance of the law of non-contradiction, no man
can justify an a priori knowledge of the universal, invariant nature of the law of
non-contradiction; we need special revelation from the Divine Mind that the law of
non-contradiction applies in all circumstances. Accordingly, if a universal is not
revealed by an ominiscient God who knows with certainty the universality of all
universals, man - unaided by special revelation - cannot deduce that the law of
non-contradiction is indeed a law. The justification of all tools of reason reduce to
rational inferences if God has not revealed them to man through special revelation;
yet rational inferences are unjustifiable apart from a true doctrine of creation and
providence, which too must be grounded in special revelation. Moreover, the law of
non-contradiction presupposes truth, which too cannot be justified apart from special
revelation. This is not to say that man being made in the image of God does not know
the law of non-contradiction a priori. He does (and because of that he can be found
guilty of bearing false witness to the truth). Yet notwithstanding, man cannot ground
even that essential and basic transcendental apart from special revelation, which
today is found in Scripture alone.