Isaiah 32:4

And the heart of the hasty shall understand to know, and the tongue of those stammering shall hasten to speak plain.

Isaiah 29:24

And they going astray shall know understanding, and they murmuring shall learn knowledge.

Exodus 4:11

And Jehovah will say to him, Who set a mouth to man? or who set the dumb, or deaf, or the seeing, or blind? is it not I Jehovah?

Nehemiah 8:8-12

And they will read in the book in the law of God accurately, and he set up the understanding, and they will cause to understand the reading.

Song of Songs 7:9

And thy palate as good wine going to my beloved for uprightness, causing the lips of the sleeping to flow softly.

Matthew 11:25

In that time Jesus having answered, said, I acknowledge to thee, O Father, Lord of heaven and earth, for thou hast hidden these things from the wise and intelligent, and revealed them to children.

Matthew 16:17

And Jesus, having answered, said to him, Happy art thou, Simon Barjona: for flesh and blood has not revealed to thee, but my Father, he in the heavens.

Luke 21:14-15

Set therefore in your hearts, not to practise beforehand to justify yourselves:

Acts 2:4-12

And they were all filled with the Holy Spirit, and began to speak in other tongues, as the Spirit gave them to utter.

Acts 4:13

And seeing the freedom of speech of Peter and John, and comprehending that they are illiterate men, and private individuals, they wondered; and they knew them, that they were with Jesus.

Acts 6:7

And the word of God increased: and the number of disciples was multiplied greatly in Jerusalem; and a great crowd of priests listened to the faith.

Acts 26:9-11

I therefore truly thought to myself, I must do many things contrary to the name of Jesus, the Nazarite.

Galatians 1:23

And only they had heard, That he then driving us out, now announces the good news, the faith which he then felt the absence of.

Treasury of Scripture Knowledge

Summary

The heart also of the rash shall understand knowledge, and the tongue of the stammerers shall be ready to speak plainly.

General references

Bible References

Heart

Isaiah 29:24
And they going astray shall know understanding, and they murmuring shall learn knowledge.
Nehemiah 8:8
And they will read in the book in the law of God accurately, and he set up the understanding, and they will cause to understand the reading.
Matthew 11:25
In that time Jesus having answered, said, I acknowledge to thee, O Father, Lord of heaven and earth, for thou hast hidden these things from the wise and intelligent, and revealed them to children.
Matthew 16:17
And Jesus, having answered, said to him, Happy art thou, Simon Barjona: for flesh and blood has not revealed to thee, but my Father, he in the heavens.
Acts 6:7
And the word of God increased: and the number of disciples was multiplied greatly in Jerusalem; and a great crowd of priests listened to the faith.
Acts 26:9
I therefore truly thought to myself, I must do many things contrary to the name of Jesus, the Nazarite.
Galatians 1:23
And only they had heard, That he then driving us out, now announces the good news, the faith which he then felt the absence of.

General references

Mark 7:35
And quickly his ears were opened, and the bond of his tongue was loosed, and he spake rightly.