'Perverse Generation' in the Bible

Then Jesus answered, "O faithless and perverse generation, how long shall I be with you? How long shall I bear with you? Bring him here to me."

Then Jesus answered, "O faithless and perverse generation, how long shall I be with you and bear with you? Bring your son here."

And he testified with many other words and exhorted them, saying, "Save yourselves from this perverse generation."

so that you may be blameless and innocent, children of God without blemish in the midst of a crooked and perverse generation, among whom you shine as lights in the world,