Joshua received this word.
Joshua means "Savior."
Jesus is our Savior, and He is our rest:
"Come unto me, all ye that labour and are heavy laden, and I will give you rest." (Matthew 11:28)
In the Psalms, we see how God leads us to rest:
"He maketh me to lie down in green pastures: he leadeth me beside the still waters.
3He restoreth my soul: he leadeth me in the paths of righteousness for his name's sake" (Psalm 23: 2-3)
Many of us want to have our outer lives fulfilled and prosperous.
Yet before God our loving Father leads us into victory in our walk on this earth, He wants us to rest in the Truth of His Son, that He has put away all our sins forever!
Consider also what John wrote to his best friend Gaius:
"Beloved, I wish above all things that thou mayest prosper and be in health, even as thy soul prospereth." (3 John 2)
See the rest which Jesus has become for you.
Then you will see His victory in your life!