Charles Ellicott Commentary Judges 1:35

"but the Amorites would dwell in mount Heres, in Aijalon, and in Shaalbim: yet the hand of the house of Joseph prevailed, so that they became subject to taskwork." — Judges 1:35 (ASV)

Mount Heres. — (See Judges 1:33.) Cheres is used for the sun in Job 9:7. The Vatican Codex of the Septuagint has the strange rendering, “in the mountains of potsherds” (compare to the Monte Testaccio at Rome), and Jerome follows them in reading תֶךֶש for תֶךֶס. The Alexandrian Codex renders it, “the mountain of the myrtle-grove,” reading Haras.

Aijalon. — The name means “gazelles,” and is still preserved in the name Yalo, a village on the south side of the beautiful valley, Merj Ibn Omeir. It is mentioned in the story of the battle of Beth-horon (Joshua 10:12), and as a scene of the defeat of the Philistines by Saul (1 Samuel 14:31). It was a Levitical town (Joshua 21:24).

Shaalbim. — The name means “jackals” (and Hazar-shual,Joshua 15:28; and Shalim, 1 Samuel 9:4). The Septuagint renders this and Aijalon as “where the bears and foxes are.” Not far off is Zeboim, i.e., “Hyenas.”

Yet the hand of the house of Joseph prevailed. — This may imply that when Dan was unable to dislodge the Amorites they were effectually aided by the tribes of Ephraim and Manasseh. Hence the Septuagint renders it, “The hand of the house of Joseph was heavy on the Amorites.” (Compare to 1 Samuel 5:6; Psalms 32:6.)

Tributaries. — Not to Dan, but to their conquerors, the Ephraimites; so that the assistance rendered by the house of Joseph to their weak brother was, at best, somewhat selfish, although it enabled Dan to hold the sea-coast (Judges 1:17).