Isaiah 32:4

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

Isaiah 29:24

They also that erred in spirit shall come to understanding, and they that murmured shall learn doctrine.

Exodus 4:11

And the LORD said unto him, Who has made man's mouth? or who makes the dumb, or deaf, or the seeing, or the blind? have not I the LORD?

Nehemiah 8:8-12

So they read in the book in the law of God distinctly, and gave the sense, and caused them to understand the reading.

Song of Songs 7:9

And the roof of your mouth like the best wine for my beloved, that goes down sweetly, flowing gently over lips and teeth.

Matthew 11:25

At that time Jesus answered and said, I thank you, O Father, Lord of heaven and earth, because you have hid these things from the wise and prudent, and have revealed them unto babes.

Matthew 16:17

And Jesus answered and said unto him, Blessed are you, Simon Barjona: for flesh and blood has not revealed it unto you, but my Father who is in heaven.

Luke 21:14-15

Settle it therefore in your hearts, not to meditate beforehand what you shall answer:

Acts 2:4-12

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

Acts 4:13

Now when they saw the boldness of Peter and John, and perceived that they were unlearned and ordinary men, they marveled; and they took knowledge of them, that they had been with Jesus.

Acts 6:7

And the word of God increased; and the number of the disciples multiplied in Jerusalem greatly; and a great company of the priests were obedient to the faith.

Acts 26:9-11

I verily thought with myself, that I ought to do many things contrary to the name of Jesus of Nazareth.

Galatians 1:23

But they had heard only, That he who persecuted us in times past now preaches the faith which once he destroyed.

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
They also that erred in spirit shall come to understanding, and they that murmured shall learn doctrine.
Nehemiah 8:8
So they read in the book in the law of God distinctly, and gave the sense, and caused them to understand the reading.
Matthew 11:25
At that time Jesus answered and said, I thank you, O Father, Lord of heaven and earth, because you have hid these things from the wise and prudent, and have revealed them unto babes.
Matthew 16:17
And Jesus answered and said unto him, Blessed are you, Simon Barjona: for flesh and blood has not revealed it unto you, but my Father who is in heaven.
Acts 6:7
And the word of God increased; and the number of the disciples multiplied in Jerusalem greatly; and a great company of the priests were obedient to the faith.
Acts 26:9
I verily thought with myself, that I ought to do many things contrary to the name of Jesus of Nazareth.
Galatians 1:23
But they had heard only, That he who persecuted us in times past now preaches the faith which once he destroyed.

General references

Mark 7:35
And immediately his ears were opened, and the string of his tongue was loosed, and he spoke plainly.