- Morris weaves together notes on the historical background, comments on the Greek text, and discussion of the theology of John, along with contemporary illustrations and application.
- Rather than proceeding verse by verse, he comments unit by unit on the English text (his own translation of the original Greek).
- The tone of Morris's writing is devotional, but it is backed by the weight of scholarship.
- Originally printed in four separate volumes, this work is now available in one convenient, durable volume.