Acts 11:8

But I said, No, Lord; for nothing common or unclean has ever come into my mouth.

Romans 14:14

I am conscious of this, and am certain in the Lord Jesus, that nothing is unclean in itself; but for the man in whose opinion it is unclean, for him it is unclean.

Leviticus 10:10

And make a division between the holy and the common, and between the unclean and the clean;

Leviticus 11:47

Marking out the unclean from the clean, and the living thing which may be used for food from that which may not.

Ezra 9:11-12

Which you gave to your servants the prophets, saying, The land into which you are going, to take it for a heritage, is an unclean land, because of the evil lives of the peoples of the land and their disgusting ways, which have made the land unclean from end to end.

Hosea 9:3

They will have no resting-place in the Lord's land, but Ephraim will go back to Egypt, and they will take unclean food in Assyria.

Mark 7:2

And had seen that some of his disciples took their bread with unclean, that is, unwashed, hands.

1 Corinthians 7:14

For the husband who has not faith is made holy through his Christian wife, and the wife who is not a Christian is made holy through the brother: if not, your children would be unholy, but now are they holy.

Treasury of Scripture Knowledge

Summary

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

Bible References

Common

Mark 7:2
And had seen that some of his disciples took their bread with unclean, that is, unwashed, hands.
Romans 14:14
I am conscious of this, and am certain in the Lord Jesus, that nothing is unclean in itself; but for the man in whose opinion it is unclean, for him it is unclean.

Basic English, produced by Mr C. K. Ogden of the Orthological Institute - public domain