Matthew 12:39
But he answered and said to them, A wicked and adulterous generation is seeking for a sign; and no sign will be given to it, but the sign of Jonah the prophet.
Matthew 16:4
A wicked and adulterous generation seeketh after a sign; and no sign will be given to it, but the sign of Jonah. And he left them and went away.
Luke 11:29-32
And when the crowds were thronging about him, he began to say, This generation is a wicked generation; it seeketh a sign; and no sign will be given it, but the sign of Jonah.
Mark 8:38
For whoever shall be ashamed of me and of my words in this adulterous and sinful generation, of him will also the Son of man be ashamed, when he cometh in the glory of his Father with the holy angels.
James 4:4
Ye adulteresses, know ye not that the friendship of the world is enmity with God? Whoever therefore chooseth to be a friend of the world, becometh an enemy of God.