# What command did Yahweh give to Joshua, the son of Nun?

Yahweh commanded Joshua to be strong and of good courage. 

# Why did Yahweh command Joshua to be strong and of good courage?

Yahweh told Joshua to be strong and of good courage because Joshua would bring the people of Israel into the land that Yahweh had sworn to them and Yahweh told Joshua that he would be with Joshua.