Jamieson, Fausset and Brown on Joshua 23:5-11

Jos 23:5-11. By Promises.

5-11. the Lord your God, he shall expel them from before you, as the Lord your God hath promised you, &c.--The actual possessions which God had given were a pledge of the complete fulfilment of His promise in giving them the parts of the country still unconquered. But the accomplishment of the divine promise depended on their inviolable fidelity to God's law--on their keeping resolutely aloof from all familiar intercourse and intimate connections with the Canaanites, or in any way partaking of their idolatrous sins. In the event of their continuing in steadfast adherence to the cause of God, as happily distinguished the nation at that time, His blessing would secure them a course of brilliant and easy victories (Le 26:7; De 28:7; 32:30).