Let us rejoice in this grace, so that our glorying may bear witness to our good conscience by which we glory, not in ourselves but in the Lord. That is why Scripture says, “He is my glory, the one who lifts up my head.” For what greater grace could God have made to dawn on us than to make his only Son become the Son of man, so that human beings might in their turn become children and heirs of God? Ask if this were merited; ask for its reason, for its justification, and whether you will find any answer but sheer grace.

an aid to prayer from Augustine.
in the Ancient Christian Devotional, ed. Thomas Oden and Cindy Crosby, 31.