In war, there are roles that everyone must operate in. These roles are vital in order that lives are not lost, and footing is gained to ultimately subdue the land. If everyone in the war is vying for leadership, instead of focusing on the task they have been given in the mission, the enemy clearly sees that no one is truly invested in the part they play in advancing the cause. This makes it easy for him to infiltrate and distract those on the field, and ultimately destroy the chances of ever taking the land.
Stay focused in the mission you have been given in the war. It may not be general, or captain. But, your role is none the less as important to the advancement of the cause. Also, consider that Joshua wasn’t always the leader. Because he was faithful in following Moses, as God has lead and directed him, when the time came for someone to step in and lead, Joshua was well prepared. He was equipped to take over that role, and follow, just as Moses had followed the directives of God. He was faithful in following, and that was what prepared him to lead.
Matthew 25:21, “His lord said unto him, Well done, thou good and faithful servant: thou hast been faithful over a few things, I will make thee ruler over many things…“