Mark 8:21
And he said unto them, "How is it that ye understand not?"
Mark 6:52
For they remembered not of the loaves, because their hearts were blinded.
Psalm 94:8
Take heed, ye unwise among the people: O ye fools, when will ye understand?
Matthew 16:11-12
Why perceive ye not, then, that I spake not unto you of bread, when I said, 'Beware of the leaven of the Pharisees and of the Sadducees?'"
Mark 8:12
and he sighed in his spirit and said, "Why doth this generation seek a sign? Verily I say unto you, there shall no sign be given unto this generation."
Mark 8:17
And when Jesus knew that, he said unto them, "Why take ye thought because ye have no bread? Perceive ye not yet, neither understand? Have ye your hearts yet blinded?
Mark 9:19
He answered him and said, "O generation without faith, how long shall I be with you? How long shall I suffer you? Bring him unto me."
John 14:9
Jesus said unto him, "Have I been so long time with you: and yet hast thou not known me? Philip, he that hath seen me, hath seen the father. And how sayest thou then, Show us the father?
1 Corinthians 6:5
This I say to your shame. Is there utterly no wise man among you? What, not one at all? That can judge between brother and brother?
1 Corinthians 15:34
Awake truly out of sleep, and sin not. For some have not the knowledge of God. I speak this unto your rebuke.