Joshua 4:24 That all the people of the earth might know the hand of the LORD, that it is mighty: that ye might fear the LORD your God for ever.
God is busy doing work even now just like He has always that will cause us to know that He is God. He is mighty. He hears and answers prayer. He wants to be feared or loved and respected above all else.
He is not to be taken lightly. He is not to be taken for granted. He is God and there is none else. God was working in Israel, in Joshua, and in their battles. It was not so much so that they could have victory or be greatly blessed and used but so that the world would know how great the One and Only God is!
More than anything His goal was to cause God’s people to know how great their God is! His work is not so much for everyone else but for me. Not for me to get but for me to respect, love, fear, and know that He really is God!