Luke 6:45

The good man out of the good treasure of his heart brings forth what is good; and the evil man out of the evil treasure brings forth what is evil; for his mouth speaks from that which fills his heart.

Psalm 37:30-31

The mouth of the righteous utters wisdom,
And his tongue speaks justice.

Proverbs 4:23

Watch over your heart with all diligence,
For from it flow the springs of life.

Matthew 12:34-37

You brood of vipers, how can you, being evil, speak what is good? For the mouth speaks out of that which fills the heart.

Acts 8:19-23

saying, “Give this authority to me as well, so that everyone on whom I lay my hands may receive the Holy Spirit.”

Romans 3:13-14

Their throat is an open grave,
With their tongues they keep deceiving,”
The poison of asps is under their lips”;

Ephesians 4:29

Let no unwholesome word proceed from your mouth, but only such a word as is good for edification according to the need of the moment, so that it will give grace to those who hear.

Ephesians 5:3-4

But immorality or any impurity or greed must not even be named among you, as is proper among saints;

Ephesians 5:19

speaking to one another in psalms and hymns and spiritual songs, singing and making melody with your heart to the Lord;

Colossians 4:6

Let your speech always be with grace, as though seasoned with salt, so that you will know how you should respond to each person.

Hebrews 8:10

For this is the covenant that I will make with the house of Israel
After those days, says the Lord:
I will put My laws into their minds,
And I will write them on their hearts.
And I will be their God,
And they shall be My people.

James 3:5-8

So also the tongue is a small part of the body, and yet it boasts of great things.See how great a forest is set aflame by such a small fire!

Psalm 12:2-4

They speak falsehood to one another;
With flattering lips and with a double heart they speak.

Psalm 40:8-10

I delight to do Your will, O my God;
Your Law is within my heart.”

Psalm 41:6-7

And when he comes to see me, he speaks falsehood;
His heart gathers wickedness to itself;
When he goes outside, he tells it.

Psalm 52:2-4

Your tongue devises destruction,
Like a sharp razor, O worker of deceit.

Psalm 59:7

Behold, they belch forth with their mouth;
Swords are in their lips,
For, they say, “Who hears?”

Psalm 59:12

On account of the sin of their mouth and the words of their lips,
Let them even be caught in their pride,
And on account of curses and lies which they utter.

Psalm 64:3-8

Who have sharpened their tongue like a sword.
They aimed bitter speech as their arrow,

Psalm 71:15-18

My mouth shall tell of Your righteousness
And of Your salvation all day long;
For I do not know the sum of them.

Psalm 140:5

The proud have hidden a trap for me, and cords;
They have spread a net by the wayside;
They have set snares for me. Selah.

Proverbs 10:20-21

The tongue of the righteous is as choice silver,
The heart of the wicked is worth little.

Proverbs 12:18

There is one who speaks rashly like the thrusts of a sword,
But the tongue of the wise brings healing.

Proverbs 15:23

A man has joy in an apt answer,
And how delightful is a timely word!

Proverbs 22:17-18

Incline your ear and hear the words of the wise,
And apply your mind to my knowledge;

Jeremiah 9:2-5

Oh that I had in the desert
A wayfarers’ lodging place;
That I might leave my people
And go from them!
For all of them are adulterers,
An assembly of treacherous men.

John 7:38

He who believes in Me, as the Scripture said, ‘From his innermost being will flow rivers of living water.’”

Acts 5:3

But Peter said, “Ananias, why has Satan filled your heart to lie to the Holy Spirit and to keep back some of the price of the land?

2 Corinthians 4:6-7

For God, who said, “Light shall shine out of darkness,” is the One who has shone in our hearts to give the Light of the knowledge of the glory of God in the face of Christ.

Ephesians 3:8

To me, the very least of all saints, this grace was given, to preach to the Gentiles the unfathomable riches of Christ,

Colossians 3:16

Let the word of Christ richly dwell within you, with all wisdom teaching and admonishing one another with psalms and hymns and spiritual songs, singing with thankfulness in your hearts to God.

Jude 1:15

to execute judgment upon all, and to convict all the ungodly of all their ungodly deeds which they have done in an ungodly way, and of all the harsh things which ungodly sinners have spoken against Him.”

Treasury of Scripture Knowledge

Summary

A good man out of the good treasure of his heart bringeth forth that which is good; and an evil man out of the evil treasure of his heart bringeth forth that which is evil: for of the abundance of the heart his mouth speaketh.

General references

Bible References

Good man

Psalm 37:30
The mouth of the righteous utters wisdom,
And his tongue speaks justice.
Psalm 40:8
I delight to do Your will, O my God;
Your Law is within my heart.”
Psalm 71:15
My mouth shall tell of Your righteousness
And of Your salvation all day long;
For I do not know the sum of them.
Proverbs 10:20
The tongue of the righteous is as choice silver,
The heart of the wicked is worth little.
Proverbs 12:18
There is one who speaks rashly like the thrusts of a sword,
But the tongue of the wise brings healing.
Proverbs 15:23
A man has joy in an apt answer,
And how delightful is a timely word!
Proverbs 22:17
Incline your ear and hear the words of the wise,
And apply your mind to my knowledge;
Matthew 12:35
The good man brings out of his good treasure what is good; and the evil man brings out of his evil treasure what is evil.
John 7:38
He who believes in Me, as the Scripture said, ‘From his innermost being will flow rivers of living water.’”
Ephesians 4:29
Let no unwholesome word proceed from your mouth, but only such a word as is good for edification according to the need of the moment, so that it will give grace to those who hear.
Ephesians 5:3
But immorality or any impurity or greed must not even be named among you, as is proper among saints;
Colossians 4:6
Let your speech always be with grace, as though seasoned with salt, so that you will know how you should respond to each person.

And an

Psalm 12:2
They speak falsehood to one another;
With flattering lips and with a double heart they speak.
Psalm 41:6
And when he comes to see me, he speaks falsehood;
His heart gathers wickedness to itself;
When he goes outside, he tells it.
Psalm 52:2
Your tongue devises destruction,
Like a sharp razor, O worker of deceit.
Psalm 59:7
Behold, they belch forth with their mouth;
Swords are in their lips,
For, they say, “Who hears?”
Psalm 64:3
Who have sharpened their tongue like a sword.
They aimed bitter speech as their arrow,
Psalm 140:5
The proud have hidden a trap for me, and cords;
They have spread a net by the wayside;
They have set snares for me. Selah.
Jeremiah 9:2
Oh that I had in the desert
A wayfarers’ lodging place;
That I might leave my people
And go from them!
For all of them are adulterers,
An assembly of treacherous men.
Acts 5:3
But Peter said, “Ananias, why has Satan filled your heart to lie to the Holy Spirit and to keep back some of the price of the land?
Acts 8:19
saying, “Give this authority to me as well, so that everyone on whom I lay my hands may receive the Holy Spirit.”
Romans 3:13
Their throat is an open grave,
With their tongues they keep deceiving,”
The poison of asps is under their lips”;
James 3:5
So also the tongue is a small part of the body, and yet it boasts of great things.See how great a forest is set aflame by such a small fire!
Jude 1:15
to execute judgment upon all, and to convict all the ungodly of all their ungodly deeds which they have done in an ungodly way, and of all the harsh things which ungodly sinners have spoken against Him.”

For

Matthew 12:34
You brood of vipers, how can you, being evil, speak what is good? For the mouth speaks out of that which fills the heart.

General references

Luke 24:14
And they were talking with each other about all these things which had taken place.