378 · Ambrose of Milan, Exposition of the Christian Faith (De fide) 5.6.81
Or take in another way the words: “It is not Mine to give to you,” that is, “It is not Mine, for I came to teach humility; it is not Mine, for I came, not to be ministered unto, but to minister; it is not Mine, for I show justice, not favour.” Then, speaking of the Father, He added: “For whom it has been prepared,” to show that the Father also is not wont to give heed merely to requests, but to merits; for God is not a respecter of persons. Wherefore also the Apostle says: “Whom He did foreknow, He also did predestinate.” He did not predestinate them before He knew them, but He did predestinate the reward of those whose merits He foreknew.