Napsal(a) Joe David
Joshua is first mentioned in Exodus 17, where he is told to select men to fight for the children of Israel against the Amalekites in the desert. He becomes Moses' general whenever a battle needs to be fought as the tribes travel in the wilderness, and was one of the 12 scouts sent to spy out the land of Canaan. Of the 12 only he and Caleb were ready to go on right then.
He became Moses' assistant, and when Moses died he bequeathed the leadership on to Joshua. He led the Children of Israel across the Jordan River, commanded the conquest of the land of Canaan and oversaw the allocation by lot of the twelve tribes into the land.
In early stages, Joshua represents truth from the Bible fighting against evil, assisting Moses, who represents the Divine Truth of the Bible itself. Joshua then takes on this complete representation when Moses dies.
When a person decides to leave behind what is merely natural and looks for something deeper, wanders in the wilderness for a while, and then finally is led by the Lord to what is to be home to his or her internal mind, that person finds something he didn't expect. His or her mind is populated by many selfish loves that don't want to think internally about heavenly love. Though the person can subdue these, he or she must fight to do it, and finds that they are never fully conquered so as to be absolutely gone. They resist.
Joshua continues to represent the truths from the Bible that we know and that we use to fight against the evils in ourselves. All the wars talked about in the Bible, all the way through the book of Revelation represent this same battle.
How did the Lord answer the devil when He was tempted? With a truth from Scripture. Where do the evils arise? When on earth the Lord said "…A man's enemies are those of his own household." Matt. 10: 35,36). They come through the things that seem to be us.