But neither should you be plagued by their folly. Sometimes they use their own self-righteousness to be an accuser of you. Implied in their claims of righteousness is the insinuation that you are not righteous.

Have nothing to do with the swine or you may get caught up in their folly. Perhaps this is a source for Paul's teaching: [[2Co 6:14]] Be ye not unequally yoked together with unbelievers: for what fellowship hath righteousness with unrighteousness? and what communion hath light with darkness?