Luke 11:41

But dedicate once for all your inner self, and at once you will have everything clean.

Acts 10:15-16

A second time the voice came to him, "The things that God has cleansed you must not call unclean."

Acts 10:28

and he said to him, "You know that it is against the law for a Jew to associate with a foreigner or to visit one, but God has taught me not to call any man vulgar or ceremonially unclean;

Romans 14:14

I know, and through my union with the Lord Jesus I have a clear conviction, that nothing is unclean in itself; that a thing is unclean only to the person who thinks it unclean.

Romans 14:20

Stop undoing the work of God just for the sake of food. Everything is clean, but it is wrong for a man to eat anything when it makes another stumble.

2 Corinthians 6:17

Therefore: "'Come out of company with them, and separate from them,' the Lord has said, 'And stop touching what is unclean; then I will welcome you,

Titus 1:15

To the pure everything is pure, but to the impure and unbelieving nothing is pure, but their very minds and consciences are impure.

Treasury of Scripture Knowledge

Summary

And the flesh that toucheth any unclean thing shall not be eaten; it shall be burnt with fire: and as for the flesh, all that be clean shall eat thereof.

Bible References

General references

Luke 11:41
But dedicate once for all your inner self, and at once you will have everything clean.
Acts 10:15
A second time the voice came to him, "The things that God has cleansed you must not call unclean."
Romans 14:14
I know, and through my union with the Lord Jesus I have a clear conviction, that nothing is unclean in itself; that a thing is unclean only to the person who thinks it unclean.
2 Corinthians 6:17
Therefore: "'Come out of company with them, and separate from them,' the Lord has said, 'And stop touching what is unclean; then I will welcome you,
Titus 1:15
To the pure everything is pure, but to the impure and unbelieving nothing is pure, but their very minds and consciences are impure.