Wherefore the Lord said, Forasmuch as this people draw near me with their mouth, and with their lips do honour me, but have removed their heart far from me, and their fear toward me is taught by the precept of men: 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. Isaiah 29:13-14 KJV https://bible.com/bible/1/isa.29.13-14.KJV
Woe to those who think that the Lord is slow in His coming. This generation will see the Lord and He will bring judgement on the Earth and those who refused to believe in Jesus.