By the middle of the land, Heb. by the navel of the land. So he calls either, first, The middle of it, as the middle part of Greece and of Sicily are called the navel of them by the Roman writers, because the navel is in the midst of man's body; or, secondly, The higher part of it, called the mountains, Judges 9:36, and here the navel, because it was raised above the other ground, as the navel is above the rest of the body.
Related Commentaries of Judges 9:37
Judges 9:37
37 And Gaal spake again and said, See there come people down by the middlek of the land, and another company come along by the plain of Meonenim.