True belief will manifest itself as the believer becomes a doer of the Word and not a hearer only. Sex outside of marriage is rampant worldwide. Multiple wives are common in some parts of the world. This also may indicate illegal drug use. The following verses can also apply to smoking .
Idols can also include possessions.
In some cases, one becomes his own idol. In this Laodicean church age, lying has become commonplace. They make bold, prideful statements as if it were nothing, without considering the consequences.