neither do they consist of bodies; for even in bodies the powers are incorporeal.

I thought the rest of this chapter was quite logical, but this step lost me. Why don't the gods consist of bodies? Is Sallustius' saying that gods only consist of powers?

Indeed, what are "the powers" referred to, here? Taylor uses nearly identical wording, and so sheds no light. I'm assuming things like thoughts and feelings, which may have bodily expression but are not, themselves, of the body?