Pseudo-Chrysostom — as excerpted in the Catena Aurea on Mark 5:1-20

“(Vict. Ant. e Cat. in Marc.) Lest he should not be believed, if He affirmed there were many, He wishes that they themselves should confess it; wherefore there follows, And he saith unto him, Legion, for we are many. He gives not a fixed number, but a multitude, for such accuracy in the number would not help us to understand it.”