Compare the “seven demons,” by whom Mary Magdalene was possessed (Luke 8:2), (ii) the “seven other spirits” “worse than the first,” which our Lord describes as taking up their abode in a man (Matthew 12:45).
And he answered, saying, My name is Legion: for we are many—or, as in Luke (Lu 8:30) “because many devils [demons] were entered into him.” A legion, in the Roman army, amounted, at its full complement, to six thousand; but here the word is used, as such words with us, and even this one, for an indefinitely large number—large enough however to rush, as soon as permission was given, into two thousand swine and destroy them.
And he asked him, what is thy name?…. Which question Christ put, not for his own sake; for he was not ignorant of his name, nor of the number of the unclean spirits which were in the man; but partly, that it might be known what a miserable condition this poor man was in, being infested, and vexed with such a large company of devils; and partly, that his own pity and power in delivering him, might be more manifest;
and he answered, saying, my name is Legion: the Syriac version renders it, “our name is Legion”; the reason of which name is given, for we are many: