First Sunday in Advent

In this Sunday's Catena we are introduced to two relatively late Fathers, namely, Rabanus Maurus, a 9th century Benedictine theologian, and Remigius of Auxerre, a 10th century Benedictine teacher. Although St. Thomas uses them only once each in today's Catena, unlike the frequently appearing Chrysostom or Augustine, nevertheless he certainly relied heavily upon their pioneering work of establishing the study of theology as a kind of science.