"And I will lead the blind by a way they do not know, In paths
they do not know I will guide them. I will make darkness into light
before them And rugged places into plains. These are the things I will
do, And I will not leave them undone." ...
And on that day the deaf shall hear words of a book, And out of their gloom and darkness the eyes of the blind shall see.
Isaiah 42:16, 29:18, NASB