Acts 11:8

And I said, By no means, Lord, for nothing common or impure has ever entered into my mouth.

Romans 14:14

I know, and am persuaded in the Lord Jesus, that nothing is defiled in itself, except to him that thinks any thing to be defiled; to him it is defiled.

Mark 7:2

and seeing some of his disciples eat bread with defiled, that is, unwashed hands, [they found fault].

1 Corinthians 7:14

For the unbelieving husband is sanctified by the believing wife, and the unbelieving wife is sanctified by the brother; else were your children impure, 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 seeing some of his disciples eat bread with defiled, that is, unwashed hands, [they found fault].
Romans 14:14
I know, and am persuaded in the Lord Jesus, that nothing is defiled in itself, except to him that thinks any thing to be defiled; to him it is defiled.