God established a time for his promises and a time for their fulfillment. The time for promises was in the time of the prophets, until John the Baptist; from John until the end is the time of fulfillment.

God, who is faithful, put himself in our debt, not by receiving anything but by promising so much. A promise was not sufficient for him; he chose to commit himself in writing as well, as it were making a contract of his promises. He wanted us to be able to see the way in which his promises were redeemed when he began to discharge them. And so the time of the prophets was, as we have often said, the foretelling of the promises.