Synonyms:

ye–those; tu–however; etat–this; abhyasuyantah–out of envy; na–do not; anutisthanti–regularly perform; me–My; matam–injunction; sarva-jnana–all sorts of knowledge; vimudhan–perfectly befooled; tan–they are; viddhi–know it well; nastan–all ruined; acetasah–without Krsna consciousness.

Translation:

But those who, out of envy, disregard these teachings and do not practice them regularly, are to be considered bereft of all knowledge, befooled, and doomed to ignorance and bondage.