Matthew 15:11

It’s not what goes into the mouth that defiles a man, but what comes out of the mouth, this defiles a man.”

Acts 10:14-15

“No, Lord!” Peter said. “For I have never eaten anything common and ritually unclean!”

Mark 7:15

Nothing that goes into a person from outside can defile him, but the things that come out of a person are what defile him.

Psalm 10:7

Cursing, deceit, and violence fill his mouth;
trouble and malice are under his tongue.

Psalm 12:2

They lie to one another;
they speak with flattering lips and deceptive hearts.

Psalm 52:2-4

Like a sharpened razor,
your tongue devises destruction,
working treachery.

Psalm 58:3-4

The wicked go astray from the womb;
liars err from birth.

Isaiah 37:23

Who is it you have mocked and blasphemed?
Who have you raised your voice against
and lifted your eyes in pride?
Against the Holy One of Israel!

Isaiah 59:3-5

For your hands are defiled with blood
and your fingers, with iniquity;
your lips have spoken lies,
and your tongues mutter injustice.

Isaiah 59:13-15

transgression and deception against the Lord,
turning away from following our God,
speaking oppression and revolt,
conceiving and uttering lying words from the heart.

Jeremiah 9:3-6

They bent their tongues like their bows;
lies and not faithfulness prevail in the land,
for they proceed from one evil to another,
and they do not take Me into account.
This is the Lord’s declaration.

Matthew 12:34-37

Brood of vipers! How can you speak good things when you are evil? For the mouth speaks from the overflow of the heart.

Matthew 15:18-20

But what comes out of the mouth comes from the heart, and this defiles a man.

Luke 11:38-41

When the Pharisee saw this, he was amazed that He did not first perform the ritual washing before dinner.

Acts 11:8-9

“‘No, Lord!’ I said. ‘For nothing common or ritually unclean has ever entered my mouth!’

Romans 3:13-14

Their throat is an open grave;
they deceive with their tongues.
Vipers’ venom is under their lips.

Romans 14:14

(I know and am persuaded by the Lord Jesus that nothing is unclean in itself. Still, to someone who considers a thing to be unclean, to that one it is unclean.)

Romans 14:17

for the kingdom of God is not eating and drinking, but righteousness, peace, and joy in the Holy Spirit.

Romans 14:20

Do not tear down God’s work because of food. Everything is clean, but it is wrong for a man to cause stumbling by what he eats.

1 Timothy 4:4-5

For everything created by God is good, and nothing should be rejected if it is received with thanksgiving,

Titus 1:15

To the pure, everything is pure, but to those who are defiled and unbelieving nothing is pure; in fact, both their mind and conscience are defiled.

Hebrews 13:9

Don’t be led astray by various kinds of strange teachings; for it is good for the heart to be established by grace and not by foods, since those involved in them have not benefited.

James 3:5-8

So too, though the tongue is a small part of the body, it boasts great things. Consider how large a forest a small fire ignites.

2 Peter 2:18

For by uttering boastful, empty words, they seduce, with fleshly desires and debauchery, people who have barely escaped from those who live in error.

Treasury of Scripture Knowledge

Summary

Not that which goeth into the mouth defileth a man; but that which cometh out of the mouth, this defileth a man.

Bible References

That which goeth

Mark 7:15
Nothing that goes into a person from outside can defile him, but the things that come out of a person are what defile him.
Luke 11:38
When the Pharisee saw this, he was amazed that He did not first perform the ritual washing before dinner.
Acts 10:14
“No, Lord!” Peter said. “For I have never eaten anything common and ritually unclean!”
Acts 11:8
“‘No, Lord!’ I said. ‘For nothing common or ritually unclean has ever entered my mouth!’
Romans 14:14
(I know and am persuaded by the Lord Jesus that nothing is unclean in itself. Still, to someone who considers a thing to be unclean, to that one it is unclean.)
1 Timothy 4:4
For everything created by God is good, and nothing should be rejected if it is received with thanksgiving,
Titus 1:15
To the pure, everything is pure, but to those who are defiled and unbelieving nothing is pure; in fact, both their mind and conscience are defiled.
Hebrews 13:9
Don’t be led astray by various kinds of strange teachings; for it is good for the heart to be established by grace and not by foods, since those involved in them have not benefited.

But

Matthew 15:18
But what comes out of the mouth comes from the heart, and this defiles a man.
Matthew 12:34
Brood of vipers! How can you speak good things when you are evil? For the mouth speaks from the overflow of the heart.
Psalm 10:7
Cursing, deceit, and violence fill his mouth;
trouble and malice are under his tongue.
Psalm 12:2
They lie to one another;
they speak with flattering lips and deceptive hearts.
Psalm 52:2
Like a sharpened razor,
your tongue devises destruction,
working treachery.
Psalm 58:3
The wicked go astray from the womb;
liars err from birth.
Isaiah 37:23
Who is it you have mocked and blasphemed?
Who have you raised your voice against
and lifted your eyes in pride?
Against the Holy One of Israel!
Isaiah 59:3
For your hands are defiled with blood
and your fingers, with iniquity;
your lips have spoken lies,
and your tongues mutter injustice.
Jeremiah 9:3
They bent their tongues like their bows;
lies and not faithfulness prevail in the land,
for they proceed from one evil to another,
and they do not take Me into account.
This is the Lord’s declaration.
Romans 3:13
Their throat is an open grave;
they deceive with their tongues.
Vipers’ venom is under their lips.
James 3:5
So too, though the tongue is a small part of the body, it boasts great things. Consider how large a forest a small fire ignites.
2 Peter 2:18
For by uttering boastful, empty words, they seduce, with fleshly desires and debauchery, people who have barely escaped from those who live in error.

General references

Leviticus 11:2
“Tell the Israelites: You may eat all these kinds of land animals.
Matthew 15:18
But what comes out of the mouth comes from the heart, and this defiles a man.
Luke 12:57
“Why don’t you judge for yourselves what is right?

Holman Christian Standard Bible®, Copyright © 1999, 2000, 2002, 2003, 2009 by Holman Bible Publishers.