We have also a more sure word of prophecy; to which you do well that you take heed, as unto a light that shines in a dark place, until the day dawn, and the day star arise in your hearts:
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George Leo Haydock
And we have the surer word of prophecy, or to make our testimonies and preaching of Christ more firm. The revelations of God made to the prophets, and contained in the holy Scriptures, give us of all others the greatest assurance. Though the mysteries in themselves remain obscure and incomprehensible, the motive of our belief is divine authority. (Witham)
If our testimony be suspicious, we have what you will certainly allow, the testimony of the prophets: attend then to the prophets as to a lamp that illumines a dark place, till the bright day of a more lively faith begins to illumine you, and the day-star arises in your heart: till this faith, which is like the day-star, give you a perfect knowledge of Jesus Christ. It is by the divine oracles you will acquire this knowledge, provided you peruse them with proper dispositions.