Boice works through Joshua as the account of God keeping a promise four centuries old. The exposition follows the commissioning of Joshua and the command to meditate on the law, the spies and Rahab's faith, the crossing of the Jordan, the fall of Jericho, the defeat at Ai and the sin of Achan, the deception of the Gibeonites, the long campaigns, the allotment of the territories, and Joshua's closing summons to serve the Lord.

The Boice Expositional Commentary series grew out of James Montgomery Boice's pulpit ministry at Tenth Presbyterian Church in Philadelphia, which means the chapters began as sermons and read like them: Reformed in conviction, pastoral in tone, and free of technical apparatus. Joshua raises hard questions about the conquest, and Boice addresses them rather than passing over them. The book also supplies the Old Testament background for the New Testament's language of rest and inheritance.