Bede the Venerable — as excerpted in the Catena Aurea on Mark 7:31-37

“(in Marc. 2, 31) Decapolis is a region of ten cities, across the Jordan, to the east, over against Galilee.c When therefore it is said that the Lord came to the sea of Galilee, through the midst of the borders of Decapolis, it does not mean that He entered the confines of Decapolis themselves; for He is not said to have crossed the sea, but rather to have come to the borders of the sea, and to have reached quite up to the place, which was opposite to the midst of the coasts of Decapolis, which were situated at a distance across the sea. It goes on, And they bring him one that was deaf and dumb, and they besought him to lay hands upon him.”