Isaiah 32:4

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

Isaiah 29:24

They also that err in spirit shall come to understanding, and they that murmur shall receive instruction.

Exodus 4:11

And Jehovah said unto him, Who hath made man's mouth? Or who maketh a man dumb, or deaf, or seeing, or blind? Is it not I, Jehovah?

Nehemiah 8:8-12

And they read in the book, in the law of God, distinctly; and they gave the sense, so that they understood the reading.

Song of Songs 7:9

And thy mouth like the best wine, That goeth down smoothly for my beloved, Gliding through the lips of those that are asleep.

Matthew 11:25

At that season Jesus answered and said, I thank thee, O Father, Lord of heaven and earth, that thou didst hide these things from the wise and understanding, and didst reveal them unto babes:

Matthew 16:17

And Jesus answered and said unto him, Blessed art thou, Simon Bar-jonah: for flesh and blood hath not revealed it unto thee, but my Father who is in heaven.

Luke 21:14-15

Settle it therefore in your hearts, not to meditate beforehand how to 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 beheld the boldness of Peter and John, and had perceived that they were unlearned and ignorant men, they marvelled; 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 exceedingly; 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 only heard say, He that once persecuted us now preacheth the faith of which he once made havoc;

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 err in spirit shall come to understanding, and they that murmur shall receive instruction.
Nehemiah 8:8
And they read in the book, in the law of God, distinctly; and they gave the sense, so that they understood the reading.
Matthew 11:25
At that season Jesus answered and said, I thank thee, O Father, Lord of heaven and earth, that thou didst hide these things from the wise and understanding, and didst reveal them unto babes:
Matthew 16:17
And Jesus answered and said unto him, Blessed art thou, Simon Bar-jonah: for flesh and blood hath not revealed it unto thee, 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 exceedingly; 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 only heard say, He that once persecuted us now preacheth the faith of which he once made havoc;

General references

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

American Standard Version Public Domain