And by thy sword shalt thou live,—literally, upon thy sword shalt thou be, i.e. thy maintenance shall depend on thy sword; a prediction that Esau's descendants should be a warlike and tumultuous people of predatory habits (cf. Josephus, B. 1; 4. 4)—and shalt serve thy brother;—a prediction afterwards fulfilled (of. 1 Samuel 14:47; 2 Samuel 8:14; 1 Kings 11:16; 2 Kings 14:7-10; 2 Chronicles 20:22-25)—and it shall come to pass when thou shalt have the dominion, that thou shalt break his yoke from off thy neck. The verb רוּד, used of beasts which have broken the yoke and wander freely about (Gesenius, Furst), appear to hint at an incessant restlessness on the part of Edom while under Israel's yoke which should eventually terminate in regaining their independence. The exact rendering of the clause is obscure, but perhaps means that when Edom should roam about as a freebooter (Lange), or should revolt (Alford), or should toss, shake, or struggle against the yoke (Vulgate, Keil, Hengstenberg, 'Speaker's Commentary), he should succeed. Other renderings are, when thou shalt bear rule (Kimchi), when thou shalt repent (Jarchi), when thou shalt be strong (Samaritan), when thou prevailest (Murphy), when thou shalt truly desire it (Kalisch), when thou shalt pull down (LXX.); because thou art restless (Havernick).
HOMILETICS