1 Corinthians 4:4

For I am not conscious. This great apostle of the Gentiles, though conscious to himself of no breach of duty, still does not dare to call himself just. How different is the conduct of this apostle, from those wicked impostors, who teach, that a man is justified by believing himself so. (Estius) --- If this privileged apostle was afraid to from any judgment of his own heart and thoughts, whether they were pure or not, but left the trial thereof to the day of judgment, the day of his death, how presumptuous are they, who dare to pronounce on their election and predestination!