Matthew 12:39

But he answered and said to them, An evil and adulterous generation seeks for a sign, and no sign shall be given it but the sign of the prophet Jonah.

Matthew 16:4

An evil and adulterous generation seeks a sign; and no sign shall be given it except the sign of Jonah. And he left them and departed.

Luke 11:29-32

And multitudes being assembled, he said, This generation is an evil generation. It seeks for a sign, and no sign shall be given it but the sign of Jonah.

Mark 8:38

For whoever is ashamed of me and of my words, in this adulterous and sinful generation, of him will the Son of man also be ashamed, when he comes in the glory of his Father, with the holy angels.

James 4:4

Adulteresses, know you not that the friendship of the world is enmity against God? Whoever therefore wishes to be a friend of the world, is made an enemy of God.

Treasury of Scripture Knowledge

Summary

But he answered and said unto them, An evil and adulterous generation seeketh after a sign; and there shall no sign be given to it, but the sign of the prophet Jonas:

Adulterous

General references

Bible References

Adulterous

Mark 8:38
For whoever is ashamed of me and of my words, in this adulterous and sinful generation, of him will the Son of man also be ashamed, when he comes in the glory of his Father, with the holy angels.
James 4:4
Adulteresses, know you not that the friendship of the world is enmity against God? Whoever therefore wishes to be a friend of the world, is made an enemy of God.

No sign

Matthew 16:4
An evil and adulterous generation seeks a sign; and no sign shall be given it except the sign of Jonah. And he left them and departed.
Luke 11:29
And multitudes being assembled, he said, This generation is an evil generation. It seeks for a sign, and no sign shall be given it but the sign of Jonah.

General references

Luke 11:16
and others, trying him, asked of him a sign from heaven.