The Recovering of the Lord's Testimony in Fullness by T Austin-Sparks and published by Classics.
There are three things which are essential to an adequate life with God, to a fullness of the Christian life.
Firstly, the realization that God is concerned with the accomplishment of something worthy of Himself. We shall not get very far toward a full Christian life, or a life with God, until it breaks upon us and takes hold of us that God is really concerned with the accomplishment of something worthy of Himself.
The second thing is that people shall become aware of what that great something in the heart of God is, what it is that God is so concerned with, and then that they shall be moved to co-operate with Him in it. That is an essential to a life of fullness with God, that we His people shall come to see what it is that He is really set upon, what it is that will really be worthy of Himself, and, more than that, that we shall become so deeply moved about this matter as to co-operate with Him in it.
And then, in the third place, that we recognize that this object in the heart of God and this co-operation with Him by His people involves very real conflict and cost, and that His people must face that and be ready to accept it.