We may not assent to the teaching even of the Catholic bishops, if at any time they are deceived into opinions contrary to the canonical Scriptures of God; but if they should so fall into error, and yet maintain the bond of unity and charity, let the apostle's saying avail in their case: 'And if in anything ye are otherwise minded, God shall reveal even this unto you.' Now these divine words have so manifest an application to the whole Church, that none but heretics in their stubborn perverseness and blind fury can bark against them.

St. Augustine of Hippo
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