The Apostle Paul was quoting Scripture taken from Isaiah 29:14 “Therefore, behold, I will proceed to do a marvellous work among this people, even a marvellous work and a wonder: for the wisdom of their wise men shall perish, and the understanding of their prudent men shall be hid.” He was alluding to the truth that God shall intervene by His power to save man by confounding their “wisdom”.