Joshua 1:10 (CSB) Then Joshua commanded the officers of the people:

Joshua heard the call and what did he do? He began to walk in the authority God had given him. He began to be the leader of the Israelites. He was strong and courageous to accomplish all that God had given him to do. He took that step of faith to speak to the officers of Israel. He had no idea how they would respond but he spoke up as their leader. No doubt the people before him was younger than him and as kids saw him stand with Caleb to say that The Lord has given them this land. Contrary to the other ten spies who did not believe God.