Matthew 3:7
But when he saw many of the Pharisees and Sadducees coming for baptism, he exclaimed, "O vipers' brood, who has warned you to flee from the coming wrath?
Matthew 12:39
"Wicked and faithless generation!" He replied, "they clamour for a sign, but none shall be given to them except the sign of the Prophet Jonah.
Matthew 16:4
A wicked and faithless generation are eager for a sign; but none shall be given to them except the sign of Jonah." and He left them and went away.
Matthew 23:36
I tell you in solemn truth that all these things will come upon the present generation.
Acts 2:40
And with many more appeals he solemnly warned and entreated them, saying, "Escape from this crooked generation."