Judges 15:8 - Joseph Benson’s Commentary on the Old and New Testaments

He smote them hip and thigh This seems to be merely a proverbial expression to denote a desperate attack and total overthrow. And he went down, or, rather, went and dwelt For it is an idiom of the Hebrew language, to speak of going up, or going down, to a place without having any reference to the situation of it, whether it lay high or low. The place here spoken of, the top of the rock Etam, undoubtedly lay high, being, as Josephus informs us, a strong place in the tribe of Judah, to the summit of which only one man could ascend in front. Here Samson waited to see what steps the Philistines would take. It appears that Samson had no commission from God to raise an army and make open war, like Gideon, Jephthah, and others, for the deliverance of Israel from the yoke of the Philistines; but was only authorized to weaken them and keep them in awe, that their dread of him might cause them to lessen their cruelty.