By the sea coast he does not refer to the neighbouring sea of Galilee, because this would not be accounted wonderful, but it is so called from the great sea, and therein also Tyre and Sidon may be comprehended, of which it follows, Both of Tyre and Sidon. And these states being Gentile, are purposely named here, to indicate how great was the fame and power of the Saviour which had brought even the citizens of the coast to receive His healing and teaching. Hence it follows, Which came to hear him.
Reproduced in full. Translation: Oxford 1841 (Newman), public domain (Public domain).