“the Adversary.” The Greek word for Adversary is Satanas (#4567 Σατανᾶς), which has been transliterated into “Satan” in most versions. This causes the meaning of the word, which is important, to be lost. For more information on it, see commentary on Mark 1:13. [For information on the names of the Devil, see Appendix 14: “Names of the Devil”.]
“How then….” This is the figure of speech Erotesis (rhetorical question).