Philo's Allegorical Commentary consists of nineteen treatises and a fragment of another that comprise a running commentary on Gen 2:1-18:2, although De somniis extends this to later texts in Gen. Philo linked at least six of the treatises together through secondary prefaces. This suggests that the Allegorical Commentary has a literary unity that should be respected. At the same time, the Alexandrian also gave treatises thematic treatments, a pattern that sets each treatise apart. This paper will explore the place of De mutatione nominum in the series of treatises devoted to Abraham and attempt to understand how the treatise functioned within the Abraham cycle and the Allegorical Commentary as a whole.