Filthiness (151) (aischrotes from aischrós = indecent, indecorous, dishonorable, inappropriate conduct, ugly, shameful, base, disgraceful) describes impropriety or improper conduct whether in action or word or even thought and intent. It means indecorum of any kind. Aischrotes is an "ugly" sounding word which describes ugly, shameful conduct of any kind, specifically conduct which is contrary to a person who is inhabited by the Spirit of Christ and is called to follow after his Father in heaven. Eadie writes that aischrotes... denotes indecency, obscenity, or wantonness; whatever, not merely in speech but in anything, is opposed to purity. (Ephesians 5 Commentary) Attachment and conformity to God requires a conduct of which God is not ashamed and which could not bring shame to the person when it is brought to light. Are you as convicted as I am (remember thought, word or deed)? Silly talk, coarse jesting - "unclean speech" often veiled in innuendo or double meaning. (just turn on your television in 2006 for one sexual innuendo after another. Guard your heart...and your ears!) Among the heathen it is considered an "art" to take a simple statement and make it dirty! Don't even laugh at it! Certainly don't watch most of the comics on television (even "regular" channels!) Note that filthiness, silly talk and coarse jesting are all in the context of immorality, so clearly they have some relationship to that sin. Filthiness is talking openly in mixed company about things that are filthy, things that are unclean, things that God says are immoral and impure.