Isaiah 8:20 - Joseph Benson’s Commentary on the Old and New Testaments

To the law and to the testimony Let this dispute between you and them be determined by God's word, which is here, and in many other places, called the law, to signify their obligation to believe and obey it; and the testimony, because it is a witness between God and man, of God's will, and of man's duty. If they speak not, &c. Your antagonists, who seek to pervert you. No light This proceeds from the darkness of their minds; they are blind, and cannot see. But these words are understood by divers learned interpreters, not as a declaration of their ignorance, but a prediction of their misery, light being most commonly used in Scripture for comfort and happiness, and darkness for sorrows and calamities. And this sense seems to be much favoured by the following passage: and then the words, אין לישׁחר, mean, no light, or no morning, shall be to them; that is, a night of misery shall come upon them, and they shall never have a morning of deliverance from it; they shall be swallowed up in endless calamities, as is farther declared in the following verses.