if one theological theme is more basic than others in Paul’s letters, therefore, it is this notion that God is a gracious God and that he has shown his grace preeminently in his arrangement of history
Thielman identifies grace as the architectonic center of Pauline theology, the irreducible ground from which all other doctrinal claims derive their coherence.
, Theology of the New Testament: A Canonical and Synthetic Approach, 2005thesis