27 But Manasseh never managed to drive out Beth Shan, Taanach, Dor, Ibleam, and Megiddo with their territories. The Canaanites dug in their heels and wouldn't budge. 28 When Israel became stronger they put the Canaanites to forced labor, but they never got rid of them. 29 Neither did Ephraim drive out the Canaanites who lived in Gezer. The Canaanites stuck it out and lived there with them.
30 Nor did Zebulun drive out the Canaanites in Kitron or Nahalol. They kept living there, but they were put to forced labor. 31 Nor did Asher drive out the people of Acco, Sidon, Ahlab, Aczib, Helbah, Aphek, and Rehob. 32 Asher went ahead and settled down with the Canaanites since they could not get rid of them. 33 Naphtali fared no better. They couldn't drive out the people of Beth Shemesh or Beth Anath so they just moved in and lived with them. They did, though, put them to forced labor.
Matthew Henry's Commentary on Judges 1:27-33
Commentary on Judges 1:21-36
(Read Judges 1:21-36)
The people of Israel were very careless of their duty and interest. Owing to slothfulness and cowardice, they would not be at the pains to complete their conquests. It was also owing to their covetousness: they were willing to let the Canaanites live among them, that they might make advantage of them. They had not the dread and detestation of idolatry they ought to have had. The same unbelief that kept their fathers forty years out of Canaan, kept them now out of the full possession of it. Distrust of the power and promise of God deprived them of advantages, and brought them into troubles. Thus many a believer who begins well is hindered. His graces languish, his lusts revive, Satan plies him with suitable temptations, the world recovers its hold; he brings guilt into his conscience, anguish into his heart, discredit on his character, and reproach on the gospel. Though he may have sharp rebukes, and be so recovered that he does not perish, yet he will have deeply to lament his folly through his remaining days; and upon his dying bed to mourn over the opportunities of glorifying God and serving the church he has lost. We can have no fellowship with the enemies of God within us or around us, but to our hurt; therefore our only wisdom is to maintain unceasing war against them.