Mark 8:21
"Do you not understand now?" he said.
Mark 6:52
for they had not understood the lesson of the loaves; their minds were dull.
Matthew 16:11-12
Why do you not see that I was not speaking to you about bread? No, beware of the leaven of the Pharisees and Sadducees."
Mark 8:12
But he sighed in spirit and said, "Why does this generation demand a Sign? I tell you truly, no Sign shall be given this generation."
Mark 8:17
He noted this and said to them, "Why do you argue you have no bread? Do you not see, do you not understand, even yet? Are you still dull of heart?
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 14:9
Jesus said to him, "Philip, have I been with you all this time, and yet you do not understand me? He who has seen me has seen the Father. What do you mean by saying, 'Let us see the Father'?
1 Corinthians 6:5
I say this to put you to shame. Has it come to this, that there is not a single wise man among you who could decide a dispute between members of the brotherhood,
1 Corinthians 15:34
Get back to your sober senses and avoid sin, for some of you ??and I say this to your shame ??some of you are insensible to God.