Tradition
St. Jerome
De Viris Illustribus (Illustrious Men)
Chapter 74
Victorinus, bishop of Pettau, was not equally familiar with Latin and Greek. On this account his works though noble in thought, are inferior in style. They are the following: Commentaries On Genesis, On Exodus, On Leviticus, On Isaiah, On Ezekiel, On Habakkuk, On Ecclesiastes, On the Song of Songs, On the Apocalypse of John, Against all heresies and many others. At the last he received the crown of martyrdom.
Source: De Viris Illustribus (Illustrious Men) (New Advent)