Matthew 15:10

Then Jesus called the crowds to come to Him, and He said to them, "Listen and understand.

Matthew 13:19

When anyone hears the message of the kingdom but does not understand it, the evil one [i.e., the devil] comes to him and grabs away what had been sown in his heart. This is the person who was scattered to the side of the road.

Matthew 24:15

"Therefore, when you see that disgusting thing which causes total destruction [i.e., the Roman armies. See Luke 21:20], which Daniel the prophet spoke about [Dan. 9:27; 11:31; 12:11], standing in the sacred place [i.e., Jerusalem and especially the Temple area], (let the reader understand [what is meant by this]),

Mark 7:14-15

Then He called the crowd to Him again and said to them, "Listen to me, all of you, and understand [what I am saying].

Luke 20:45-47

Then Jesus said to His disciples in the hearing of all the people,

Luke 24:45

Then He opened their minds [miraculously ?] so they would understand the Scriptures.

Ephesians 1:17

that the God of our Lord Jesus Christ, the glorious Father, will give you a spirit [i.e., a disposition] of wisdom and revelation [or, "give you the spiritual gifts of wisdom and revelation"], so you can have full knowledge of God.

Colossians 1:9

So, this is why, since the day we heard about these things, we do not stop praying for you and requesting that you people be filled [by God] with the knowledge of what He wants [for your lives], and with spiritual wisdom and understanding.

James 1:5

But if any one of you lacks wisdom, he should pray to God, who gives to everyone generously and does not begrudge [the person who asks], and it will be given to him.

Treasury of Scripture Knowledge

Summary

And he called the multitude, and said unto them, Hear, and understand:

Bible References

He

Mark 7:14
Then He called the crowd to Him again and said to them, "Listen to me, all of you, and understand [what I am saying].
Luke 20:45
Then Jesus said to His disciples in the hearing of all the people,

Hear

Matthew 13:19
When anyone hears the message of the kingdom but does not understand it, the evil one [i.e., the devil] comes to him and grabs away what had been sown in his heart. This is the person who was scattered to the side of the road.
Matthew 24:15
"Therefore, when you see that disgusting thing which causes total destruction [i.e., the Roman armies. See Luke 21:20], which Daniel the prophet spoke about [Dan. 9:27; 11:31; 12:11], standing in the sacred place [i.e., Jerusalem and especially the Temple area], (let the reader understand [what is meant by this]),
Luke 24:45
Then He opened their minds [miraculously ?] so they would understand the Scriptures.
Ephesians 1:17
that the God of our Lord Jesus Christ, the glorious Father, will give you a spirit [i.e., a disposition] of wisdom and revelation [or, "give you the spiritual gifts of wisdom and revelation"], so you can have full knowledge of God.
Colossians 1:9
So, this is why, since the day we heard about these things, we do not stop praying for you and requesting that you people be filled [by God] with the knowledge of what He wants [for your lives], and with spiritual wisdom and understanding.
James 1:5
But if any one of you lacks wisdom, he should pray to God, who gives to everyone generously and does not begrudge [the person who asks], and it will be given to him.

General references

Matthew 15:16
And He replied, "Are you still unable to understand?
Mark 4:9
And Jesus said, "Whoever has ears to hear with ought to listen [to this] carefully."
Luke 12:57
"And why do you not judge for yourselves what is right?
Luke 20:45
Then Jesus said to His disciples in the hearing of all the people,