Joshua 17
17So Joshua said to the house of Joseph—to Ephraim and Manasseh—“You have many people and great strength. You shall not have just one allotment, 18because the hill country will be yours as well. It is a forest; clear it, and its farthest limits will be yours. Although the Canaanites have iron chariots and although they are strong, you can drive them out.”
Not to give away the story, but you found out in the previous chapter already... they didn't drive out the Canaanites. They did 95% of what God asked, received some of His blessings and never gave Him the last 5%. And it comes back to haunt them. God doesn't want 95%. He wants you to put all of Christ over all of your life.