<p>2:18 <em>Men who concerning the truth have erred, in saying that the resurrection is past already; and they ruin the faith of some</em>- &quot;The truth&quot; may refer specifically to the Lord Jesus. These men may have been influenced by the kind of incipient Gnosticism which was pushed by the Judaizers, coming to term in the teachings of the kabbala which deny the significance of the body and of bodily resurrection. The denial of bodily resurrection was associated with &quot;unGodliness&quot; in practice (:16). If we are living only for today, and bodily resurrection both of the Lord and ourselves is minimalized to the point of denial, then there will be &quot;ungodliness&quot; in practice. And this is the danger of preterism. Faith is 'ruined' if the bodily aspect of resurrection is minimized or removed. &quot;Ruin the faith&quot; is a Greek word only elsewhere used in Tit. 1:11, where the motive for such false teaching was money. If we do not need to face a future judgment for the things &quot;done in the body&quot; (2 Cor. 5:10), then the flesh can be pleased just as we wish. And this was so attractive that some were even prepared to pay money for that to be true. We see here how the root of much doctrinal, theological heresy is psychologically based; a desire to justify the flesh.</p>