Verse 2: (Judg. 3:1) This is the land that yet remaineth: (Joel 3:4) all the borders of the Philistines, and all (Josh. 13:13; 2 Sam. 3:3; 13:37, 38) Geshuri…
That yet remaineth unconquered by thee, and to be conquered by the Israelites, if they behave themselves aright.
[All Galilee, the Philistines] I suspect that there is an error here, and that Galilee crept into the text from the margin. For, 1. Galilee is always called גָּלִיל or גְּלִילָה, never גְּלִילוֹת in the plural number. 2. הַפְּלִשְׁתִּים/Philistines is not able to stand by itself, for it signifies men, not a land, which is called פְּלֶשֶׁת/Philistia. 3. It does not at all appear true that Galilee was not yet subdued, since that war in Joshua 10 was conducted in Galilee (Bonfrerius).
[כָּל־גְּלִיל֥וֹת הַפְּלִשְׁתִּ֖ים] [They take גְּלִילוֹת appellatively, and thus they translate it:] The limits, or boundaries, or confines, or borders (Septuagint, Jonathan, Junius and Tremellius, Montanus, Pagnine, Drusius, Tigurinus, Symmachus in Drusius, Kimchi and Rabbi Salomon in Masius), or, the provinces, of the Philistines (Munster, Castalio). The coasts (Masius), or shores to seas and rivers: which are so called, either, because of the sinuous recesses of shores and banks; or, because waves ebb and flow there and dance billow by billow; or, from the mounds of sand heaped up there (Masius).
[All Geshuri, וְכָל־הַגְּשׁוּרִי] And all of the Geshurite (Vatablus), a singular in the place of the plural, or, of the Geshurites, supply, the borders. Thus Deuteronomy 3:14, the border of the Geshurite (Drusius). Understand this concerning that Geshuri, which was neighbor to Egypt and the Amalekites, not concerning that which was in Syria, Deuteronomy 3:14 (Drusius, Masius, Malvenda). [Others otherwise:] I understand this, not concerning that which was near the Amalekites, but concerning that land which the Geshurites had occupied, that is, on the sea, along the Northern coast next to Syra (Menochius, similarly Bonfrerius). I take this of the region near Hermon towards the Nothern tract across Jordan, concerning which Deuteronomy 3:14. Although that was allotted to the Manassites, Joshua 13:11, it appears that they never possessed it, verse 13. See 2 Samuel 3:3; 13:37, 38 (Bonfrerius). Question: How is Geshuri said not to have been occupied, when Jair the Gileadite is said to have captured it, 1 Chronicles 2:23; but this event Jair had already anticipated, as it is evident from Numbers 32:41; Deuteronomy 3:14? Response: It is to be said that Jair had occupied some of the region of Geshuri, and perhaps the city of Geshur, but that the Canaanites had recovered what was wrested from them: or that whatever was left in that region unoccupied is here called all Geshuri (Bonfrerius).
Geshuri; a people in the north-east of Canaan, of which see Deuteronomy 3:14, as the Philistines are on the south-west.
 Hebrew: זֹ֥את הָאָ֖רֶץ הַנִּשְׁאָ֑רֶת כָּל־גְּלִיל֥וֹת הַפְּלִשְׁתִּ֖ים וְכָל־הַגְּשׁוּרִֽי׃
 Note the feminine, plural termination (וֹת-).
 גְּלִילָה signifies a circuit or boundary, from גָּלָל, to roll.
 Deuteronomy 3:14a: “Jair the son of Manasseh took all the country of Argob unto the coasts of Geshuri (עַד־גְּב֥וּל הַגְּשׁוּרִ֖י) and Maachathi…”