Commentary on the Gospel of John

Aquinas's most sustained engagement with the Johannine tradition — a verse-by-verse commentary that draws on the full resources of patristic exegesis and scholastic philosophy. The prologue commentary alone, on the Logos theology of John 1:1–18, is one of the richest treatments of the Word in Christian theology and connects directly to the Logos tradition that runs through this site.

Commentary on the Gospel of John is a central text in the Christian mystical tradition, offering insight into the spiritual life, the nature of divine union, and the transformation of the soul.