Leviticus 7:19

And the flesh that touches any unclean thing shall not be eaten; it shall be burnt with fire. And as for the flesh, every clean man shall eat of it,

Leviticus 11:24-39

and by these ye shall become unclean. Whoever touches the carcass of them shall be unclean until the evening.

Numbers 19:11-16

He who touches the dead body of any man shall be unclean seven days.

Luke 11:41

But give compassion, things that are inside, and behold, all things are clean to you.

Acts 10:15-16

And a voice again for a second time, What God has cleansed, thou shall not make profane.

Acts 10:28

And he said to them, Ye understand how it is unlawful for a Jewish man to fraternize or to visit with a foreign man, and yet God demonstrated to me not to call one man profane or unclean.

Romans 14:14

I know and am persuaded in Lord Jesus, that nothing is profane by itself, except to him who regards anything to be profane. To that man it is profane.

Romans 14:20

Do not tear down the work of God because of food. All things indeed are clean, but it is wrong to the man who eats through hindrance.

2 Corinthians 6:17

Therefore, Come ye out from among them, and be ye separated, says Lord, And touch no unclean thing, and I will receive you

Titus 1:15

Truly to the pure all things are pure, but to those who are defiled and unbelieving nothing is pure, but both their mind and their conscience are defiled.

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

Leviticus 11:24
and by these ye shall become unclean. Whoever touches the carcass of them shall be unclean until the evening.
Numbers 19:11
He who touches the dead body of any man shall be unclean seven days.
Luke 11:41
But give compassion, things that are inside, and behold, all things are clean to you.
Acts 10:15
And a voice again for a second time, What God has cleansed, thou shall not make profane.
Romans 14:14
I know and am persuaded in Lord Jesus, that nothing is profane by itself, except to him who regards anything to be profane. To that man it is profane.
2 Corinthians 6:17
Therefore, Come ye out from among them, and be ye separated, says Lord, And touch no unclean thing, and I will receive you
Titus 1:15
Truly to the pure all things are pure, but to those who are defiled and unbelieving nothing is pure, but both their mind and their conscience are defiled.