the king: The kings of Canaan lay under the same curse as their subjects and probably were more deeply criminal. The reserving of the king of Ai for a solemn execution, would tend to strike terror into the other kings, contribute to the success of Israel, and give their proceedings the stamp of a judicial process, and of executing the vengeance of God upon his enemies. Joshua 10:26-28, Joshua 10:30, Joshua 10:33; Deuteronomy 21:22-23; Esther 7:10; Psalms 107:40, Psalms 110:5; Acts 12:23; Revelation 19:17-18
as soon: Joshua 10:27
a great heap: Joshua 7:26; 2 Samuel 18:17