Mark 7:15

There is nothing from without a man, that entering into him, can defile him: but the things which come out of him, those are they that defile the man.

Leviticus 11:42-47

Whatever goeth upon the belly, and whatever goeth upon all four, or whatever hath more feet among all creeping animals that creep upon the earth, them ye shall not eat; for they are an abomination.

Proverbs 4:23

Keep thy heart with all diligence; for out of it are the issues of life.

Matthew 12:34

O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart, the mouth speaketh.

Matthew 15:16

And Jesus said, Are ye also yet without understanding?

Mark 7:18-23

And he saith to them, Are ye so void of understanding also? Do ye not perceive, that whatever thing from without entereth into the man, it cannot defile him.

Acts 10:14-16

But Peter said, Not so, Lord; for I have never eaten any thing that is common or unclean.

Acts 10:28

And he said to them, Ye know that it is an unlawful thing for a man that is a Jew to keep company, or come to one of another nation; but God hath shown me that I should not call any man common or unclean.

Acts 11:8-10

But I said, Not so, Lord: for nothing common or unclean hath at any time entered into my mouth.

Acts 15:20-21

But that we write to them that they abstain from pollutions of idols, and from lewdness, and from things strangled, and from blood.

Romans 14:17

For the kingdom of God is not food and drink, but righteousness, and peace, and joy in the Holy Spirit.

1 Corinthians 10:25

Whatever is sold in the provision market, that eat, asking no question for conscience' sake:

1 Timothy 4:3-5

Forbidding to marry, and commanding to abstain from meats, which God hath created to be received with thanksgiving by them who believe and know the truth.

Titus 1:15

To the pure all things are pure: but to them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled.

Hebrews 9:10

Which stood only in meats and drinks, and divers washings, and carnal ordinances, imposed on them until the time of reformation.

Hebrews 13:9

Be not carried about with divers and strange doctrines: for it is a good thing that the heart be established with grace; not with meats, which have not profited them that have been occupied in them.

Treasury of Scripture Knowledge

Summary

There is nothing from without a man, that entering into him can defile him: but the things which come out of him, those are they that defile the man.

Bible References

Nothing

Mark 7:18
And he saith to them, Are ye so void of understanding also? Do ye not perceive, that whatever thing from without entereth into the man, it cannot defile him.
Leviticus 11:42
Whatever goeth upon the belly, and whatever goeth upon all four, or whatever hath more feet among all creeping animals that creep upon the earth, them ye shall not eat; for they are an abomination.
Acts 10:14
But Peter said, Not so, Lord; for I have never eaten any thing that is common or unclean.
Acts 11:8
But I said, Not so, Lord: for nothing common or unclean hath at any time entered into my mouth.
Acts 15:20
But that we write to them that they abstain from pollutions of idols, and from lewdness, and from things strangled, and from blood.
Romans 14:17
For the kingdom of God is not food and drink, but righteousness, and peace, and joy in the Holy Spirit.
1 Corinthians 10:25
Whatever is sold in the provision market, that eat, asking no question for conscience' sake:
1 Timothy 4:3
Forbidding to marry, and commanding to abstain from meats, which God hath created to be received with thanksgiving by them who believe and know the truth.
Titus 1:15
To the pure all things are pure: but to them that are defiled and unbelieving is nothing pure; but even their mind and conscience is defiled.
Hebrews 9:10
Which stood only in meats and drinks, and divers washings, and carnal ordinances, imposed on them until the time of reformation.
Hebrews 13:9
Be not carried about with divers and strange doctrines: for it is a good thing that the heart be established with grace; not with meats, which have not profited them that have been occupied in them.

But

Mark 7:20
And he said, That which cometh out of the man, that defileth the man.
Proverbs 4:23
Keep thy heart with all diligence; for out of it are the issues of life.
Matthew 12:34
O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart, the mouth speaketh.
Matthew 15:16
And Jesus said, Are ye also yet without understanding?

General references

Leviticus 11:2
Speak to the children of Israel, saying, These are the beasts which ye may eat among all the beasts that are on the earth.
Jeremiah 25:2
Which Jeremiah the prophet spoke to all the people of Judah, and to all the inhabitants of Jerusalem, saying,
Matthew 13:9
Who hath ears to hear, let him hear.
Mark 7:20
And he said, That which cometh out of the man, that defileth the man.