In that day the deaf shall hear the words of a book, and out of their gloom and darkness the eyes of the blind shall see.
18. And in that day shall the deaf hear. He promises that the Church of God, as we have said, shall still be preserved amidst those calamities. Though the world be shaken by innumerable tempests, and tossed up and down, and though heaven and earth shall mingle, yet the Lord will preserve the multitude of the godly, and will raise up his Church, as it...
Those that thought to hide their counsels from the Lord were said to turn things upside down (Isa 29:16), and they intended to do it unknown to God; but God here tells them that he will turn things upside down his way; and let us see whose word shall stand, his or theirs.
Commenting on Isaiah 29:17-24
And in that day shall the deaf hear the words of the book,.... That is, in the Gospel day, or times of the Gospel dispensation, when that should be preached to the Gentiles; who before were deaf, but now should be made to hear, and be willing to hear, and hear so as to understand the doctrines contained in the Scriptures, the prophecies of them...