The apostle John's first epistle has brought conviction, understanding and confidence to followers of Christ for twenty centuries, and it deals throughout with the practical matters that press on everyday life.

Salvation, a godly defense against loving the world, prayer, the discerning of false spirits: Martyn Lloyd-Jones takes the letter a chapter at a time and applies it carefully as he goes. This complete one-volume edition gathers the whole series, and suits a reader who wants both exposition and application rather than a technical commentary.