If it is I who determine where God is to be found, then I shall always find a god who corresponds to me in some way, who is obliging, who is connected with my own nature. But if God determines where He is to be found, then it will be in a place which is not immediately pleasing to my nature and which is not at all congenial to me. This place is the Cross of Christ. (Bonhoeffer, Pastor, Martyr, Prophet, Spy p.137)In other words, Bonhoeffer is speaking of exactly the kind of god that modern liberal christians still worship; a god who, "accepts me as I am." A god who makes no demands, requires no repentance. A god who approves of our every self-centered whim.
A god who allows us to remain the center of our own universe, threatened not even by Him. One we can keep in a cage and bring out to pet whenever we want a little cuddly comfort.