4 Bible Verses about Defilement, Objects Of

But all believers do not recognize these facts. Some, from force of habit in relation to the idol, even now eat idol sacrifices as such, and their consciences, being but weak, are polluted.

Be carefully on your guard lest there be any one who falls back from the grace of God; lest any root bearing bitter fruit spring up and cause trouble among you, and through it the whole brotherhood be defiled;

Yet in just the same way these dreamers also pollute the body, while they set authority at naught and speak evil of dignities.

They had noticed that some of His disciples were eating their food with 'unclean' (that is to say, unwashed)