<p>15:33 <i>Be not deceived- </i>This sounds like an appeal not to be deceived by false teachers.</p><p><i>Evil companionships corrupt good moral habits</i>- This and :34 are in the midst of an argument about the importance of believing in the Lord's resurrection and focusing ourselves upon our own future resurrection at His coming. So we must understand these moral appeals in the resurrection context. &quot;Evil companionships&quot; is only one possibility in translation; AV &quot;evil communications&quot; is not too far wrong. The Greek <i>homilia </i>means literally 'homily. The communications or homilies in view would then be the false teaching against which Paul was warning them: &quot;Be not deceived&quot;. It was this evil teaching being communicated to them which would corrupt morality. For if Christ is not raised and we shall not be, then there was no longer any binding moral compass upon Christians- for judgment day and the second coming would never happen, and there was no ultimate outcome of our moral behaviour in this life. The same word for &quot;corrupt&quot; will be used in 2 Cor. 11:3 of Paul's fear that false teaching would &quot;corrupt&quot; the Corinthians just as the serpent beguiled Eve.</p>