Joshua son of Nun, a man in whom is the spirit of leadership

Numbers 27:1-23
The daughters of Zelophehad son of Hepher, Why should our father’s name disappear from his clan because he had no son? Give us property among our father’s relatives.
Say to the Israelites, ‘If a man dies and leaves no son, give his inheritance to his daughter.  If he has no daughter, give his inheritance to his brothers.  If he has no brothers, give his inheritance to his father’s brothers.  If his father had no brothers, give his inheritance to the nearest relative in his clan, that he may possess it. This is to have the force of law for the Israelites, as the Lord commanded Moses.
Then the Lord said to Moses, “Go up this mountain in the Abarim Range and see the land I have given the Israelites.  After you have seen it, you too will be gathered to your people, as your brother Aaron was, for when the community rebelled at the waters in the Desert of Zin, both of you disobeyed my command to honor me as holy before their eyes.” 
Moses said to the Lord,  “May the Lord, the God who gives breath to all living things, appoint someone over this community to go out and come in before them, one who will lead them out and bring them in, so the Lord’s people will not be like sheep without a shepherd.”
Take Joshua son of Nun, a man in whom is the spirit of leadership, and lay your hand on him.  Have him stand before Eleazar the priest and the entire assembly and commission him in their presence.  Give him some of your authority so the whole Israelite community will obey him.
The law said that land passed from father to eldest son, keeping it in the tribe. But Zelophehad left only daughters. Women could not normally inherit in other ancient Near Eastern countries, but in Israel the ruling is given that , failing sons, daughters may inherit. But they must marry within their own tribe to safeguard the tribal inheritance.
Moses' life is almost over, as he looks out over the promised land. Joshua, his right-hand man and one of the two faithful spies is God's choice of successor. He is now invested with authority to lead the nation in Mose's place.
Why?
God cares tribe and family whose daughters has the authority to get inheritance among their father's relatives.
This is the first law built among Near Eastern countries.
Moses life is come to over, but he is keep in mind how his people going. Asked the Lord give them a leader to the promised land. Like sheep without a shepherd.
Moses lay his hand one Joshua, and he has some authority of Moses. Joshua a man in whom is the spirit of leadership.
How?
Through lay hand over him, leader gets the spiritual authority over the community.