Leviticus 7:19

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 shall be clean shall eat of it.

Leviticus 11:24-39

And for these ye shall be unclean: whoever toucheth the carcass of them shall be unclean until the evening.

Numbers 19:11-16

He that toucheth the dead body of any man shall be unclean seven days.

Luke 11:41

But rather give alms of such things as ye have; and behold, all things are clean to you.

Acts 10:15-16

And the voice spoke to him again the second time, What God hath cleansed, that call not thou common.

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.

Romans 14:14

I know, and am persuaded by the Lord Jesus, that there is nothing unclean by itself: but to him that esteemeth any thing to be unclean, to him it is unclean.

Romans 14:20

For the sake of food, destroy not the work of God. All things indeed are pure; but it is evil for that man who eateth with offense.

2 Corinthians 6:17

Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you;

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.

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 for these ye shall be unclean: whoever toucheth the carcass of them shall be unclean until the evening.
Numbers 19:11
He that toucheth the dead body of any man shall be unclean seven days.
Luke 11:41
But rather give alms of such things as ye have; and behold, all things are clean to you.
Acts 10:15
And the voice spoke to him again the second time, What God hath cleansed, that call not thou common.
Romans 14:14
I know, and am persuaded by the Lord Jesus, that there is nothing unclean by itself: but to him that esteemeth any thing to be unclean, to him it is unclean.
2 Corinthians 6:17
Wherefore come out from among them, and be ye separate, saith the Lord, and touch not the unclean thing; and I will receive you;
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.