{Ye shall not fulfil} (ou m(8820)teles(8874)e). Rather, "Ye will
not fulfil." Strong double negative with aorist active
subjunctive. {The lust of the flesh} (epithumian sarkos). Bad
sense here as usual in Paul, but not so in  1Th 2:17  Php 1:23 .
The word is just craving or longing (from epi, thumos, yearning
after).