Hebrews 5:11

Concerning this we have much to say, and it is hard to explain, since you have become dull and sluggish in [your spiritual] hearing and disinclined to listen.

2 Peter 3:16

speaking about these things as he does in all of his letters. In which there are some things that are difficult to understand, which the untaught and unstable [who have fallen into error] twist and misinterpret, just as they do the rest of the Scriptures, to their own destruction.

Matthew 13:15


For this nation’s heart has grown hard,
And with their ears they hardly hear,
And they have [tightly] closed their eyes,
Otherwise they would see with their eyes,
And hear with their ears,
And understand with their heart, and turn [to Me]
And I would heal them [spiritually].’

Isaiah 6:10


“Make the heart of this people insensitive,
Their ears dull,
And their eyes dim,
Otherwise they might see with their eyes,
Hear with their ears,
Understand with their hearts,
And return and be healed.”

Mark 8:17-18

Jesus, aware of this [discussion], said to them, “Why are you discussing [the fact] that you have no bread? Do you still not see or understand? Are your hearts hardened?

Mark 8:21

And He was saying to them, “Do you still not understand?”

Luke 24:25

Then Jesus said to them, “O foolish men, and slow of heart to trust and believe in everything that the prophets have spoken!

John 6:6

But He said this to test Philip, because He knew what He was about to do.

John 16:12

“I have many more things to say to you, but you cannot bear [to hear] them now.

Acts 28:27


For the heart (the understanding, the soul) of this people has become dull (calloused),
And with their ears they scarcely hear,
And they have shut their eyes [to the truth];
Otherwise they might see with their eyes,
And hear with their ears,
And understand with their heart and return [to Me],
And I would heal them.”’

1 Kings 10:1

Now when the queen of Sheba heard of the fame of Solomon concerning the name of the Lord, she came to test him with riddles.

Treasury of Scripture Knowledge

Summary

Of whom we have many things to say, and hard to be uttered, seeing ye are dull of hearing.

General references

Bible References

We

1 Kings 10:1
Now when the queen of Sheba heard of the fame of Solomon concerning the name of the Lord, she came to test him with riddles.
John 6:6
But He said this to test Philip, because He knew what He was about to do.
John 16:12
“I have many more things to say to you, but you cannot bear [to hear] them now.
2 Peter 3:16
speaking about these things as he does in all of his letters. In which there are some things that are difficult to understand, which the untaught and unstable [who have fallen into error] twist and misinterpret, just as they do the rest of the Scriptures, to their own destruction.

Dull

Isaiah 6:10

“Make the heart of this people insensitive,
Their ears dull,
And their eyes dim,
Otherwise they might see with their eyes,
Hear with their ears,
Understand with their hearts,
And return and be healed.”
Matthew 13:15

For this nation’s heart has grown hard,
And with their ears they hardly hear,
And they have [tightly] closed their eyes,
Otherwise they would see with their eyes,
And hear with their ears,
And understand with their heart, and turn [to Me]
And I would heal them [spiritually].’
Mark 8:17
Jesus, aware of this [discussion], said to them, “Why are you discussing [the fact] that you have no bread? Do you still not see or understand? Are your hearts hardened?
Luke 24:25
Then Jesus said to them, “O foolish men, and slow of heart to trust and believe in everything that the prophets have spoken!
Acts 28:27

For the heart (the understanding, the soul) of this people has become dull (calloused),
And with their ears they scarcely hear,
And they have shut their eyes [to the truth];
Otherwise they might see with their eyes,
And hear with their ears,
And understand with their heart and return [to Me],
And I would heal them.”’

General references

Leviticus 11:22
Of these you may eat: the whole species of migratory locust, of bald locust, of cricket, and of grasshopper.
Mark 7:18
And He said to them, “Are you, too, so foolish and lacking in understanding? Do you not understand that whatever goes into the man from outside cannot defile and dishonor him,