Luke 24:25

then Jesus said to them, how stupidly incredulous are you not to believe things that have been all predicted by the prophets!

Mark 7:18

and he said, are you likewise so void of understanding? don't you perceive that what passes from without into a man cannot defile him?

Mark 8:17-18

said, why do you trouble your heads about your having no bread? are you yet so void of sense, and understanding? are your minds so blinded?

Mark 9:19

then said Jesus, incredulous people, how long shall I be with you? must I be always assisting you? bring him before me.

Mark 16:14

afterwards he appear'd to the eleven, as they were all sitting at table, and he reproved them for their incredulity and obstinacy in not giving credit to those, who had seen him after his resurrection.

Hebrews 5:11-12

On this head we have many things to say, not easily to be comprehended, because of your prejudices.

Treasury of Scripture Knowledge

Summary

Then he said unto them, O fools, and slow of heart to believe all that the prophets have spoken:

General references

Bible References

O fools

Mark 7:18
and he said, are you likewise so void of understanding? don't you perceive that what passes from without into a man cannot defile him?
Mark 8:17
said, why do you trouble your heads about your having no bread? are you yet so void of sense, and understanding? are your minds so blinded?
Mark 9:19
then said Jesus, incredulous people, how long shall I be with you? must I be always assisting you? bring him before me.
Mark 16:14
afterwards he appear'd to the eleven, as they were all sitting at table, and he reproved them for their incredulity and obstinacy in not giving credit to those, who had seen him after his resurrection.
Hebrews 5:11
On this head we have many things to say, not easily to be comprehended, because of your prejudices.

General references

Matthew 26:54
but how then shall the scriptures be fulfilled, which say, that thus it must happen?
Mark 7:18
and he said, are you likewise so void of understanding? don't you perceive that what passes from without into a man cannot defile him?
Luke 18:34
but they comprehended nothing of all this: his discourse was a riddle to them, and they could not find out the meaning.