Charles Ellicott Commentary Isaiah 29:14

"therefore, behold, I will proceed to do a marvellous work among this people, even a marvellous work and a wonder; and the wisdom of their wise men shall perish, and the understanding of their prudent men shall be hid." — Isaiah 29:14 (ASV)

I will proceed to do a marvellous work ... —The sure doom of hypocrisy would come upon the hypocrites: not loving the light, they would lose the light they had, and be left to their self-chosen blindness. Here, again, history was to repeat itself, and the words of Isaiah were to be fulfilled in an age and in a manner that lay beyond the horizon of his thoughts.