Mark 8:21
He asked them, "Don't you understand, yet?"
Mark 6:52
for they hadn't understood about the loaves, but their hearts were hardened.
Psalm 94:8
Consider, you senseless among the people; you fools, when will you be wise?
Matthew 16:11-12
How is it that you don't perceive that I didn't speak to you concerning bread? But beware of the yeast of the Pharisees and Sadducees."
Mark 8:12
He sighed deeply in his spirit, and said, "Why does this generation seek a sign? Most certainly I tell you, no sign will be given to this generation."
Mark 8:17
Jesus, perceiving it, said to them, "Why do you reason that it's because you have no bread? Don't you perceive yet, neither understand? Is your heart still hardened?
Mark 9:19
He answered him, "Unbelieving generation, how long shall I be with you? How long shall I bear with you? Bring him to me."
John 14:9
Jesus said to him, "Have I been with you such a long time, and do you not know me, Philip? He who has seen me has seen the Father. How do you say, 'Show us the Father?'
1 Corinthians 6:5
I say this to move you to shame. Isn't there even one wise man among you who would be able to decide between his brothers?
1 Corinthians 15:34
Wake up righteously, and don't sin, for some have no knowledge of God. I say this to your shame.