Isaiah 29:10-12, 18

For the LORD has poured out upon you a spirit of deep sleep, and has closed your eyes (the prophets), and covered your heads (the seers). And the vision of all this has become to you like the words of a book that is sealed. When men give it to one who can read, saying, “Read this,” he says, “I cannot, for it is sealed.” And when they give the book to one who cannot read, saying, “Read this,” he says, “I cannot read.”

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.