Matthew 11:16-17
But whereto shall I liken this generation? It is like children sitting in the markets,
Matthew 17:17
Then Jesus answering said, O unbelieving and perverse generation, how long shall I be with you? How long shall I suffer you?
Mark 9:19
He answereth them and saith, O faithless generation, how long shall I be with you?
Luke 7:31-32
To whom then shall I liken the men of this generation, and to what are they like?
Luke 18:8
I tell you he will vindicate them speedily. Yet when the Son of man cometh, will he find faith upon earth?
2 Thessalonians 3:2
And that we may be delivered from unreasonable and wicked men; for all men have not 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 them that diligently seek him.