Isaiah 32:4

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

Isaiah 29:24

They also who err in spirit will come to understanding, and those who grumble will receive instruction."

Exodus 4:11

Yahweh said to him, "Who made man's mouth? Or who makes one mute, or deaf, or seeing, or blind? Isn't it I, Yahweh?

Nehemiah 8:8-12

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

Your mouth like the best wine, that goes down smoothly for my beloved, gliding through the lips of those who are asleep.

Matthew 11:25

At that time, Jesus answered, "I thank you, Father, Lord of heaven and earth, that you hid these things from the wise and understanding, and revealed them to infants.

Matthew 16:17

Jesus answered him, "Blessed are you, Simon Bar Jonah, for flesh and blood has not revealed this to you, 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

They were all filled with the Holy Spirit, and began to speak with other languages, as the Spirit gave them the ability to speak.

Acts 4:13

Now when they saw the boldness of Peter and John, and had perceived that they were unlearned and ignorant men, they marveled. They recognized that they had been with Jesus.

Acts 6:7

The word of God increased and the number of the disciples multiplied in Jerusalem exceedingly. A great company of the priests were obedient to the faith.

Acts 26:9-11

"I myself most certainly thought that I ought to do many things contrary to the name of Jesus of Nazareth.

Galatians 1:23

but they only heard: "He who once persecuted us now preaches the faith that he once tried to destroy."

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 who err in spirit will come to understanding, and those who grumble will receive instruction."
Nehemiah 8:8
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 time, Jesus answered, "I thank you, Father, Lord of heaven and earth, that you hid these things from the wise and understanding, and revealed them to infants.
Matthew 16:17
Jesus answered him, "Blessed are you, Simon Bar Jonah, for flesh and blood has not revealed this to you, but my Father who is in heaven.
Acts 6:7
The word of God increased and the number of the disciples multiplied in Jerusalem exceedingly. A great company of the priests were obedient to the faith.
Acts 26:9
"I myself most certainly thought that I ought to do many things contrary to the name of Jesus of Nazareth.
Galatians 1:23
but they only heard: "He who once persecuted us now preaches the faith that he once tried to destroy."

General references

Mark 7:35
Immediately his ears were opened, and the impediment of his tongue was released, and he spoke clearly.