God made Joshua a promise, "Just as I was with Moses so also will I be with you." Joshua was trustworthy and true man of God who was willing to fight in the valley while Moses remained on the mountain top. He embodied a trustworthy and faithful spiritual leader who was willing to serve the Lord even in the valley. God's purpose for Joshua's life was to impact the lives of the children of Israel and lead them to a certain point before he too would transition.