'Desire' in the Bible

and now, having known God -- and rather being known by God -- how turn ye again unto the weak and poor elements to which anew ye desire to be in servitude?

And I say: In the Spirit walk ye, and the desire of the flesh ye may not complete;

for the flesh doth desire contrary to the Spirit, and the Spirit contrary to the flesh, and these are opposed one to another, that the things that ye may will -- these ye may not do;