Augustine of Hippo — as excerpted in the Catena Aurea on Luke 8:26-39

“(de Qu. Evan. l. ii. q. 13.) Or, by the herdsmen of the swine flying and telling these things, He represents certain rulers of the wicked, who though they evade the law of Christianity, yet proclaim it among the nations by their astonishment and wonder. But by the Gerasenes, when they knew what was done, asking Jesus to depart from them, for they were struck with great fear, he represents the multitude delighting in their old pleasures, honouring indeed, but unwilling to endure the Christian law, saying that they cannot fulfil it, while they still marvel at the faithful released from their former abandoned mode of life.”