Commentaries:
Robertson's Word Pictures (NT)
My name is Legion (Legiwn onoma moi). So Luke 8:30, but not Matthew. Latin word (legio). A full Roman legion had 6,826 men. See on Matthew 26:53. This may not have been a full legion, for Mark 5:13 notes that the number of hogs was "about two thousand." Of course, a stickler for words might say that each hog had several demons.
Other Robertson's Word Pictures (NT) entries containing Mark 5:9:
Luke 8:2
Luke 8:30
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