Matthew 15:11

not what goes into the mouth defiles a man, but what comes out of the mouth, this defiles a man."

Acts 10:14-15

But Peter said, "No, Lord; for I have never eaten anything that is common or unclean."

Mark 7:15

there is nothing outside a man which by going into him can defile him; but the things which come out of a man are what defile him."

Matthew 12:34-37

You brood of vipers! how can you speak good, when you are evil? For out of the abundance of the heart the mouth speaks.

Matthew 15:18-20

But those things which proceed out of the mouth come from the heart, and they defile a man.

Luke 11:38-41

The Pharisee was surprised to see that he did not first wash before dinner.

Acts 11:8-9

But I said, 'No, Lord; for nothing common or unclean has ever entered my mouth.'

Romans 3:13-14

"Their throat is an open grave; they use their tongues to practice deceit." "The poison of asps is under their lips."

Romans 14:14

I know and am convinced in the Lord Jesus that nothing is unclean in itself; but if anyone regards something as unclean, then for him it is unclean.

Romans 14:17

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

Romans 14:20

Do not, for the sake of food, destroy the work of God. Everything is indeed clean, but it is wrong for a man to eat anything that causes someone else to stumble.

1 Timothy 4:4-5

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

Titus 1:15

To the pure, all things are pure; but to those who are corrupted and unbelieving, nothing is pure, but both their minds and consciences are corrupted.

Hebrews 13:9

Do not be carried away by varied and strange teachings; for it is good for the heart to be strengthened by grace, not by foods, through which those who were so occupied were not benefited.

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!

2 Peter 2:18

For speaking out arrogant words of vanity, they entice by fleshly desires, by sensuality, those who barely escape from the ones 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.

General references

Bible References

That which goeth

Mark 7:15
there is nothing outside a man which by going into him can defile him; but the things which come out of a man are what defile him."
Luke 11:38
The Pharisee was surprised to see that he did not first wash before dinner.
Acts 10:14
But Peter said, "No, Lord; for I have never eaten anything that is common or unclean."
Acts 11:8
But I said, 'No, Lord; for nothing common or unclean has ever entered my mouth.'
Romans 14:14
I know and am convinced in the Lord Jesus that nothing is unclean in itself; but if anyone regards something as unclean, then for him it is unclean.
1 Timothy 4:4
For everything created by God is good, and nothing is to be rejected if it is received with thanksgiving;
Titus 1:15
To the pure, all things are pure; but to those who are corrupted and unbelieving, nothing is pure, but both their minds and consciences are corrupted.
Hebrews 13:9
Do not be carried away by varied and strange teachings; for it is good for the heart to be strengthened by grace, not by foods, through which those who were so occupied were not benefited.

But

Matthew 15:18
But those things which proceed out of the mouth come from the heart, and they defile a man.
Matthew 12:34
You brood of vipers! how can you speak good, when you are evil? For out of the abundance of the heart the mouth speaks.
Romans 3:13
"Their throat is an open grave; they use their tongues to practice deceit." "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!
2 Peter 2:18
For speaking out arrogant words of vanity, they entice by fleshly desires, by sensuality, those who barely escape from the ones who live in error.

General references

Matthew 15:18
But those things which proceed out of the mouth come from the heart, and they defile a man.
Luke 12:57
"And why do you not judge for yourselves what is right?