The document summarizes a sermon series about two commanders meeting based on Joshua 5:13-15. It describes Joshua encountering a man with a drawn sword who identifies himself as the commander of the army of the Lord. Joshua falls down and worships him. The commander instructs Joshua to take off his sandals, showing the holiness of God and importance of having fear of God. The sermon series will discuss the confrontation with the supernatural in the natural, taking the wrong question, and knowing that the battle belongs to the Lord.