The Collectio ex opusculis sancti Augustini in epistulas Pauli apostoli is an exegetical commentary on the Pauline letters that consists of 457 fragments from the works of Augustine of Hippo. The Collectio was compiled by the Northumbrian scholar Beda Venerabilis (672/73–735), whose biblical commentaries heavily rely on patristic exegesis and theology, and, as such, function as an important mediator between patristic and medieval exegesis and theology. Though many scholars have stressed the importance of the Collectio for the study of the transmission and reception of Augustine's writings and thinking in Anglo-Saxon England, the commentary has never been edited nor have its contents been thoroughly studied. The following contribution offers the first detailed study of the Collectio’s contents by analysing the ways in which Bede presents Augustine's Pauline exegesis in his own commentary on Paul's letters. Specifically, this article will study Bede's compilation methods by means of a close analysis of one of the Collectio’s fragments, fr. 315, which offers an exegetical commentary of Eph. 3:17–18. By studying the textual channels through which Bede had access to Augustine's writings as well as by considering other passages in Bede's biblical commentaries that discuss Eph. 3:17–18, this contribution seeks to demonstrate how Bede uses, adapts, and presents Augustine's exegesis of this pericope.