Matthew 15:11

it is not what enters a man's mouth that defiles him, what defiles a man is what comes out of his mouth."

Acts 10:14-15

But Peter said, "No, no, my Lord; I have never eaten anything common or unclean."

Mark 7:15

nothing outside a man can defile him by entering him; it is what comes from him that defiles him.

Matthew 12:34-37

You brood of vipers, how can you speak good when you are evil? For the mouth utters what the heart is full of.

Matthew 15:18-20

while what comes out of the mouth comes from the heart ??and that is what defiles a man.

Luke 11:38-41

The Pharisee was astonished to see that he had not washed before the meal,

Acts 11:8-9

I said, 'No, no, my Lord; nothing common or unclean has ever passed my lips.'

Romans 3:13-14

Their throat is an open grave, they are treacherous with their tongues, the venom of an asp lies under their lips.

Romans 14:14

I know, I am certain in the Lord Jesus, that nothing is in itself unclean; only, anything is unclean for a man who considers it unclean.

Romans 14:17

The Reign of God is not a matter of eating and drinking, it means righteousness, peace, and joy in the holy Spirit;

Romans 14:20

You must not break down God's work for the mere sake of food! Everything may be clean, but it is wrong for a man to prove a stumbling-block by what he eats;

1 Timothy 4:4-5

Anything God has created is good, and nothing is to be tabooed ??provided it is eaten with thanksgiving,

Titus 1:15

For the pure all things are pure, but nothing is pure for the polluted and unbelieving; their very mind and conscience are polluted.

Hebrews 13:9

Never let yourselves be carried away with a variety of novel doctrines; for the right thing is to have one's heart strengthened by grace, not by the eating of food ??that has never been any use to those who have had recourse to it.

James 3:5-8

So the tongue is a small member of the body, but it can boast of great exploits. What a forest is set ablaze by a little spark of fire!

2 Peter 2:18

By talking arrogant futilities they beguile with the sensual lure of fleshly passion those who are just escaping from the company of misconduct ??19 promising them freedom, when they are themselves enslaved to corruption (for a man is the slave of whatever overpowers him).

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
nothing outside a man can defile him by entering him; it is what comes from him that defiles him.
Luke 11:38
The Pharisee was astonished to see that he had not washed before the meal,
Acts 10:14
But Peter said, "No, no, my Lord; I have never eaten anything common or unclean."
Acts 11:8
I said, 'No, no, my Lord; nothing common or unclean has ever passed my lips.'
Romans 14:14
I know, I am certain in the Lord Jesus, that nothing is in itself unclean; only, anything is unclean for a man who considers it unclean.
1 Timothy 4:4
Anything God has created is good, and nothing is to be tabooed ??provided it is eaten with thanksgiving,
Titus 1:15
For the pure all things are pure, but nothing is pure for the polluted and unbelieving; their very mind and conscience are polluted.
Hebrews 13:9
Never let yourselves be carried away with a variety of novel doctrines; for the right thing is to have one's heart strengthened by grace, not by the eating of food ??that has never been any use to those who have had recourse to it.

But

Matthew 15:18
while what comes out of the mouth comes from the heart ??and that is what defiles a man.
Matthew 12:34
You brood of vipers, how can you speak good when you are evil? For the mouth utters what the heart is full of.
Romans 3:13
Their throat is an open grave, they are treacherous with their tongues, the venom of an asp lies under their lips.
James 3:5
So the tongue is a small member of the body, but it can boast of great exploits. What a forest is set ablaze by a little spark of fire!
2 Peter 2:18
By talking arrogant futilities they beguile with the sensual lure of fleshly passion those who are just escaping from the company of misconduct ??19 promising them freedom, when they are themselves enslaved to corruption (for a man is the slave of whatever overpowers him).

General references

Matthew 15:18
while what comes out of the mouth comes from the heart ??and that is what defiles a man.
Luke 12:57
And why do you not yourselves settle what is right?