Chapter 7 - Discipline of Devotion
If there could only be one take-away from this chapter, I think it would (should) be this:
If you will meditate on the Law of God both day and night (in other words, consider it, think on it continually), then you will be preparing yourself for any eventuality that God allows to come your way! But I think one of the side-effects to this (a good side-effect) is the fact that you will no longer live your life with an uncertainty about what's ahead - not that you'll always know what's ahead - but you will not be concerned about that because you will know (KNOW) that your God is with you and that you, being in His prefect will, will be kept by Him, led by His Holy Spirit. And even under the threat of violence, you will exhibit strength and boldness, even the boldness to lay down your life for the increasing of His glory and name and fame!
After all, this promise to Joshua is to us now, as much as it was to him then. In fact, our own "Joshua", the Christ, Yeshua, has already brought us into the promised land and into His rest by saving us in and through Himself, unto the promise of eternity with our great God, through faith in His own death and resurrection!
And so we can count on this promise:
Have not I commanded thee? Be strong and of a good courage; be not afraid, neither be thou dismayed: for the Lord thy God is with thee whithersoever thou goest. -Joshua 1:9