Luke 11:29 in the King James Version
And when the people were gathered thick together, he began to say, This is an evil generation: they seek a sign; and there shall no sign be given it, but the sign of Jonas the prophet.
Context
28 But he said, “On the contrary, blessed are those who hear the word of God, and keep it.”
29 When the multitudes were gathering together to him, he began to say, “This is an evil generation. It seeks after a sign. No sign will be given to it but the sign of Jonah the prophet.
30 For even as Jonah became a sign to the Ninevites, so the Son of Man will also be to this generation.