For the prophecy came not in old time by the will of man: but holy men of God spoke as they were moved by the Holy Spirit.
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George Leo Haydock
For prophecy came not by the will of man at any time. This is to show that they are not to be expounded by any one's private judgment, because every part of the holy Scriptures is delivered to us by the divine spirit of God, wherewith the men were inspired who wrote them; therefore they are not to be interpreted but by the spirit of God, which he left, and promised to his Church to guide her in all truth to the end of the world. Our adversaries may perhaps tell us, that we also interpret prophecies and Scriptures; we do so; but we do it always with a submission to the judgment of the Church, they without it. (Witham)