John Chrysostom — as excerpted in the Catena Aurea on John 10:39-42

“(Hom. lxi. 3) Christ, after discoursing on some high truth, commonly retires immediately, to give time to the fury of people to abate, during His absence. Thus He did now: He went away again beyond Jordan, into the place where John at first baptized. He went there that He might recall to people’s minds, what had gone on there; John’s preaching and testimony to Himself.”