Be strong and courageous. God wanted the heathen people driven from the land so that His chosen people would not worship strange Gods. God set His affection on the Children of Israel and expected their whole- hearted devotion and worship. But they settled for the sin of spiritual accommodation. Accommodation happens when Christians change the truth of God's word to make it acceptable to people of other religions.
Spiritual accommodation transforms warriors into wimps.
Wimps are spiritual chameleons who change with their culture and fail to challenge the culture's false gods. When we're with them we'll worship their god Dagon. In a few years the victorious became the vanquished. The glory of the Lord departed and they became the servants of the Philistines. When we refuse to challenge our culture's false gods, a spiritual stupor comes over us and binds us in a stronghold of apathy.