13 In accordance with the LORD’s command to him, Joshua gave to Caleb son of Jephunneh a portion in Judah—Kiriath Arba, that is, Hebron. (Arba was the forefather of Anak.) 14 From Hebron Caleb drove out the three Anakites—Sheshai, Ahiman and Talmai, the sons of Anak. 15 From there he marched against the people living in Debir (formerly called Kiriath Sepher). 16 And Caleb said, “I will give my daughter Aksah in marriage to the man who attacks and captures Kiriath Sepher.” 17 Othniel son of Kenaz, Caleb’s brother, took it; so Caleb gave his daughter Aksah to him in marriage.
4 So Manasseh and Ephraim, the descendants of Joseph, received their inheritance.
10 They did not dislodge the Canaanites living in Gezer; to this day the Canaanites live among the people of Ephraim …
1 This was the allotment for the tribe of Manasseh as Joseph’s firstborn, that is, for Makir, Manasseh’s firstborn. Makir was the ancestor of the Gileadites, who had received Gilead and Bashan because the Makirites were great soldiers…. 12 Yet the Manassites were not able to occupy these towns, for the Canaanites were determined to live in that region. 13 However, when the Israelites grew stronger, they subjected the Canaanites to forced labor but did not drive them out completely.
16 The people of Joseph replied, “The hill country is not enough for us, and all the Canaanites who live in the plain have chariots fitted with iron, both those in Beth Shan and its settlements and those in the Valley of Jezreel.”
17 But Joshua said to the tribes of Joseph—to Ephraim and Manasseh—”You are numerous and very powerful. You will have not only one allotment 18 but the forested hill country as well. Clear it, and its farthest limits will be yours; though the Canaanites have chariots fitted with iron and though they are strong, you can drive them out.”
Canaanites – seed of evil, when not driven out, would grow and spread into the entire people and their life style — idol worship, witchcraft and other evil practices the Lord hates and forbids to His people.