Luke 6:45

The [intrinsically] good man produces what is good and honorable and moral out of the good treasure [stored] in his heart; and the [intrinsically] evil man produces what is wicked and depraved out of the evil [in his heart]; for his mouth speaks from the overflow of his heart.

Psalm 37:30-31


The mouth of the righteous proclaims wisdom,
And his tongue speaks justice and truth.

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 speak good things when you are evil? For the mouth speaks out of that which fills the heart.

Acts 8:19-23

saying, “Give me this authority and power too, so that anyone on whom I lay my hands may receive the Holy Spirit.”

Romans 3:13-14


Their throat is an open grave;
They [habitually] deceive with their tongues.”
The venom of asps is beneath their lips.”

Ephesians 4:29

Do not let unwholesome [foul, profane, worthless, vulgar] words ever come out of your mouth, but only such speech as is good for building up others, according to the need and the occasion, so that it will be a blessing to those who hear [you speak].

Ephesians 5:3-4

But sexual immorality and all [moral] impurity [indecent, offensive behavior] or greed must not even be hinted at among you, as is proper among saints [for as believers our way of life, whether in public or in private, reflects the validity of our faith].

Ephesians 5:19

Speak to one another in psalms and hymns and spiritual songs, [offering praise by] singing and making melody with your heart to the Lord;

Colossians 4:6

Let your speech at all times be gracious and pleasant, seasoned with salt, so that you will know how to answer each one [who questions you].

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 imprint My laws upon their minds [even upon their innermost thoughts and understanding],
And engrave them upon their hearts [effecting their regeneration].
And I will be their God,
And they shall be My people.

James 3:5-8

In the same sense, the tongue is a small part of the body, and yet it boasts of great things.

See [by comparison] how great a forest is set on fire by a small spark!

Psalm 12:2-4


They speak deceitful and worthless words to one another;
With flattering lips and 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 one comes to see me, he speaks empty words,
While his heart gathers malicious gossip [against me];
When he goes away, he tells it [everywhere].

Psalm 52:2-4


Your tongue devises destruction,
Like a sharp razor, working deceitfully.

Psalm 59:7


Look how they belch out [insults] with their mouths;
Swords [of sarcasm, ridicule, slander, and lies] are in their lips,
For they say, “Who hears us?”

Psalm 59:12


For the sin of their mouths and the words of their lips,
Let them even be trapped in their pride,
And on account of the curses and lies which they tell.

Psalm 64:3-8


Who have sharpened their tongues like a sword.
They aim venomous words as arrows,

Psalm 71:15-18


My mouth shall tell of Your righteousness
And of Your [deeds of] salvation all day long,
For their number is more than I know.

Psalm 140:5


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

Proverbs 10:20-21


The tongue of the righteous is like precious silver (greatly valued);
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 giving an appropriate answer,
And how good and delightful is a word spoken at the right moment—how good it is!

Proverbs 22:17-18


Listen carefully and hear the words of the wise,
And apply your mind to my knowledge;

Jeremiah 9:2-5


Oh that I had in the wilderness
A lodging place (a mere shelter) for wayfaring men,
That I might leave my people
And go away from them!
For they are all adulterers [worshiping idols instead of the Lord],
[They are] an assembly of treacherous men [of weak character, men without integrity].

John 7:38

He who believes in Me [who adheres to, trusts in, and relies on Me], as the Scripture has said, ‘From his innermost being will flow continually rivers of living water.’”

Acts 5:3

But Peter said, “Ananias, why has Satan filled your heart to lie to the Holy Spirit and [secretly] keep back for yourself some of the proceeds [from the sale] of the land?

2 Corinthians 4:6-7

For God, who said, “Let light shine out of darkness,” is the One who has shone in our hearts to give us the Light of the knowledge of the glory and majesty of God [clearly revealed] in the face of Christ.

Ephesians 3:8

To me, [though I am] the very least of all the saints (God’s people), this grace [which is undeserved] was graciously given, to proclaim to the Gentiles the good news of the incomprehensible riches of Christ [that spiritual wealth which no one can fully understand],

Colossians 3:16

Let the [spoken] word of Christ have its home within you [dwelling in your heart and mind—permeating every aspect of your being] as you teach [spiritual things] and admonish and train one another with all wisdom, singing psalms and hymns and spiritual songs with thankfulness in your hearts to God.

Jude 1:15

to execute judgment upon all, and to convict all the ungodly of all the ungodly deeds they have done in an ungodly way, and of all the harsh and cruel things 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 proclaims wisdom,
And his tongue speaks justice and truth.
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 [deeds of] salvation all day long,
For their number is more than I know.
Proverbs 10:20

The tongue of the righteous is like precious silver (greatly valued);
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 giving an appropriate answer,
And how good and delightful is a word spoken at the right moment—how good it is!
Proverbs 22:17

Listen carefully and hear the words of the wise,
And apply your mind to my knowledge;
Matthew 12:35
The good man, from his [inner] good treasure, brings out good things; and the evil man, from his [inner] evil treasure, brings out evil things.
John 7:38
He who believes in Me [who adheres to, trusts in, and relies on Me], as the Scripture has said, ‘From his innermost being will flow continually rivers of living water.’”
Ephesians 4:29
Do not let unwholesome [foul, profane, worthless, vulgar] words ever come out of your mouth, but only such speech as is good for building up others, according to the need and the occasion, so that it will be a blessing to those who hear [you speak].
Ephesians 5:3
But sexual immorality and all [moral] impurity [indecent, offensive behavior] or greed must not even be hinted at among you, as is proper among saints [for as believers our way of life, whether in public or in private, reflects the validity of our faith].
Colossians 4:6
Let your speech at all times be gracious and pleasant, seasoned with salt, so that you will know how to answer each one [who questions you].

And an

Psalm 12:2

They speak deceitful and worthless words to one another;
With flattering lips and a double heart they speak.
Psalm 41:6

And when one comes to see me, he speaks empty words,
While his heart gathers malicious gossip [against me];
When he goes away, he tells it [everywhere].
Psalm 52:2

Your tongue devises destruction,
Like a sharp razor, working deceitfully.
Psalm 59:7

Look how they belch out [insults] with their mouths;
Swords [of sarcasm, ridicule, slander, and lies] are in their lips,
For they say, “Who hears us?”
Psalm 64:3

Who have sharpened their tongues like a sword.
They aim venomous words as arrows,
Psalm 140:5

The proud have hidden a trap for me, and cords;
They have spread a net by the wayside;
They have set traps for me. Selah.
Jeremiah 9:2

Oh that I had in the wilderness
A lodging place (a mere shelter) for wayfaring men,
That I might leave my people
And go away from them!
For they are all adulterers [worshiping idols instead of the Lord],
[They are] an assembly of treacherous men [of weak character, men without integrity].
Acts 5:3
But Peter said, “Ananias, why has Satan filled your heart to lie to the Holy Spirit and [secretly] keep back for yourself some of the proceeds [from the sale] of the land?
Acts 8:19
saying, “Give me this authority and power too, so that anyone on whom I lay my hands may receive the Holy Spirit.”
Romans 3:13

Their throat is an open grave;
They [habitually] deceive with their tongues.”
The venom of asps is beneath their lips.”
James 3:5
In the same sense, the tongue is a small part of the body, and yet it boasts of great things.

See [by comparison] how great a forest is set on fire by a small spark!
Jude 1:15
to execute judgment upon all, and to convict all the ungodly of all the ungodly deeds they have done in an ungodly way, and of all the harsh and cruel things ungodly sinners have spoken against Him.”

For

Matthew 12:34
You brood of vipers, how can you speak good things when you are evil? 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.