In the discussion following Thesis 12, Walther writes perhaps the longest sentence in the whole essay. In it he shows that he does not throw out the language of the church of all ages that speaks of the individual, the personal side of faith. But it is his teaching of Universal Justification, and Objective Justification (i.e. UOJ) that is actually the foundation of this personal, individual faith. This is the foundation, the Rock (Psalm 18:2) upon which all true faith is built. (More will be said in my later comments.)
I will have further concluding remarks in the next Part 16.