Mark 9:19
He answered them, "O faithless generation, how long must I still be with you? how long have I to bear with you? Bring him to me."
John 20:27
Then he said to Thomas, "Look at my hands, put your finger here; and put your hand here into my side; cease your unbelief and believe."
Matthew 17:17
Jesus answered, "O faithless and perverse generation, how long must I still be with you? How long have I to bear with you? Bring him here to me."
Mark 16:14
Afterwards he appeared at table to the eleven themselves and reproached them for their unbelief and dulness of mind, because they had not believed those who saw him risen from the dead. [But they excused themselves, saying, "This age of lawlessness and unbelief lies under the sway of Satan, who will not allow what lies under the unclean spirits to understand the truth and power of God; therefore," they said to Christ, "reveal your righteousness now." Christ answered them, "The term of years for Satan's power has now expired, but other terrors are at hand. I was delivered to death on behalf of sinners, that they might return to the truth and sin no more, that they might inherit that glory of righteousness which is spiritual and imperishable in heaven."]
Luke 9:41
Jesus answered, "O faithless and perverse generation, how long must I still be with you and bear with you? Fetch your son here."
Luke 24:25
He said to them, "O foolish men, with hearts so slow to believe, after all the prophets have declared!
John 12:27
My soul is now disquieted. What am I to say? 'Father, save me from this hour'? Nay, it is something else that has brought me to this hour:
Hebrews 3:10-12
Therefore I grew exasperated with that generation, I said, 'They are always astray in their heart': They would not learn my ways;