JMNT(i)
15 And they are progressively (or: one after another) coming toward Jesus, and continue intently looking at the "demoniac" (the one that [had been] constantly affected or tormented by an animistic influence, or "demons") – the one that had been having (holding; possessing) "the legion [a Roman regiment of 4,000 to 6,000 troops]" – now continuing sitting clothed and being continuously sensible, orderly and cooperative (sane and of sound mind). And they became afraid.
16 Then those having seen [it] thoroughly related to them how it happened to the "demoniac," and about the young swine (hogs).
17 So they at once began to be repeatedly entreating Him (calling Him alongside and begging Him) to go away from their district (bounded area or region).