Deuteronomy 34:7-9

Moses was a hundred and twenty years old when he died, yet his eyes were not weak nor his strength gone. The Israelites grieved for Moses in the plains of Moab thirty days, until the time of weeping and mourning was over. Now Joshua son of Nun was filled with the spirit of wisdom because Moses had laid his hands on him. So the Israelites listened to him and did what the LORD had commanded Moses.