Charles Ellicott Commentary Mark 7:31

"And again he went out from the borders of Tyre, and came through Sidon unto the sea of Galilee, through the midst of the borders of Decapolis." — Mark 7:31 (ASV)

Departing from the coasts of Tyre and Sidon.—The better manuscripts give “from the coasts of Tyre through Sidon.” The latter city lay about twenty miles to the north. Accepting this reading, it marks the extreme limit of our Lord’s journeys—we can hardly say of His ministry, for there is no indication that He went there as a preacher of the Kingdom. We may however, perhaps, trace the feeling which prompted the visit in the words, It shall be more tolerable for Tyre and Sidon, in Luke 10:14, and in the Other sheep, not of this fold, in John 10:16.

Decapolis.—Another instance of St. Mark’s use of a Roman nomenclature. St. Matthew says simply, He departed thence, and came by the Sea of Galilee. For Decapolis, see Note on Matthew 4:25.