judges 6:1 And the children of Israel did evil in the sight of the LORD: and the LORD delivered them into the hand of Midian seven years. - Free Bible Online

      Jud 6:1-6. THE ISRAELITES, FOR THEIR SINS, OPPRESSED BY MIDIAN.

      1. and the Lord delivered them into the hand of Midian--Untaught by their former experiences, the Israelites again apostatized, and new sins were followed by fresh judgments. Midian had sustained a severe blow in the time of Moses (Nu 31:1-18); and the memory of that disaster, no doubt, inflamed their resentment against the Israelites. They were wandering herdsmen, called "children of the East," from their occupying the territory east of the Red Sea, contiguous to Moab. The destructive ravages they are described as at this time committing in the land of Israel are similar to those of the Bedouin Arabs, who harass the peaceful cultivators of the soil. Unless composition is made with them, they return annually at a certain season, when they carry off the grain, seize the cattle and other property; and even life itself is in jeopardy from the attacks of those prowling marauders. The vast horde of Midianites that overran Canaan made them the greatest scourge which had ever afflicted the Israelites.

JFB.