1 Corinthians 8:7
Howbeit there is not in everyone that knowledge, for some with conscience of the idol unto now, eat it as a thing offered unto an idol, and their conscience being weak is defiled.
looking diligently that no one deviate from the grace of God, lest any root of bitterness springing up impede you, and thereby many be defiled,
In the same manner these deceived dreamers, defile their flesh, despise dominion, and speak evil of higher powers.
who upon seeing some of his disciples eat bread with common, that is to say, with unwashed, hands, they condemned them.