8 In the last place, every one who boasts that he, through divine illumination, understands the obscurities of Scripture, though not instructed in any rules of interpretation, at the same time believes, and rightly believes, that this power is not his own, in the sense of originating with himself, but is the gift of God. For so he seeks God's glory, not his own. But reading and understanding, as he does, without the aid of any human interpreter, why does he himself undertake to interpret for others?
Why does he not rather send them direct to God, that they too may learn by the inward teaching of the Spirit without the help of man? The truth is, he fears to incur the re proach: “You wicked and slothful servant, you ought to have put my money to the exchangers.” Seeing, then, that these men teach others, either through speech or writing, what they understand, surely they cannot blame me if I likewise teach not only what they understand, but also the rules of interpretation they follow. For no one ought to consider anything as his own, except perhaps what is false. All truth is of Him who says, “I am the truth.” For what have we that we did not receive? And if we have received it, why do we glory, as if we had not received it?
Source: Christian Doctrine (New Advent)