Matthew 11:16-17
But what should I compare the people of this generation with? They are like children sitting in the open shopping market, who call out to their playmates,
Matthew 17:17
Jesus replied [to the crowd], "You perverse generation of faithless people! How long must I be with you [i.e., before you understand]? How long do I have to be patient with you? Bring the sick boy to me."
Mark 9:19
Jesus said to them, "You generation of faithless people How long must I be with you [i.e., before you understand]? How long do I have to be patient with you? Bring the sick boy to me."
Luke 7:31-32
"What then should I compare the people of this generation with?" [Jesus asked]. "And what are they like?
Luke 18:8
I tell you, He will grant justice to them quickly. However, will the Son of man find [very many] believing people on the earth when He returns?"
2 Thessalonians 3:2
And [pray] that we will be rescued from wicked and evil people, because not everyone has faith.
Hebrews 11:6
And unless one has faith, it is impossible for him to be pleasing to God, for the person who comes to God must believe that He exists and that He rewards those who seek Him.