Matthew 11:16-17
But to what shall I liken this generation? It is like children sitting in the markets, who call to their fellows,
Matthew 17:17
Then Jesus answering said, Unbelieving and perverse generation! How long shall I be with you? How long shall I bear with you? Bring him hither to me.
Mark 9:19
He answereth and saith to them, O unbelieving generation! How long shall I be with you? How long shall I bear with you? Bring him to me.
Luke 7:31-32
To what then shall I compare the men of this generation, and what are they like?
Luke 18:8
I tell you that he will avenge them speedily. But yet, when the Son of man cometh, will he find faith on the earth?
2 Thessalonians 3:2
and that we may be delivered from unreasonable and wicked men; for it is not all that have faith.
Hebrews 11:6
But without faith it is impossible to please him; for he that cometh to God must believe that he is, and that he is a rewarder of those who diligently seek him.