Albert Barnes Commentary 1 Samuel 12:9

"But they forgat Jehovah their God; and he sold them into the hand of Sisera, captain of the host of Hazor, and into the hand of the Philistines, and into the hand of the king of Moab; and they fought against them." — 1 Samuel 12:9 (ASV)

According to the present arrangement of the Book of Judges and the common chronology, the oppression of Sisera must have occurred about 200 years after the entrance into Canaan. But Samuel here places it as the first great servitude, before that under Eglon king of Moab, or that from which Shamgar delivered them. This is in accordance with the internal evidence of the Book of Judges itself. It is also the order of Judges 10:11, except that there the Ammonites (Judges 3:13) are placed before the Philistines.