The authorship of the Johannine works has been debated by biblical scholars since at least the 2nd century AD. The debate focuses mainly on the identity of the author(s), as well as the date and location of authorship of these writings.

The Johannine epistles, the Epistles of John, or the Letters of John are the First Epistle of John, the Second Epistle of John, and the Third Epistle of John, three of the catholic epistles in the New Testament. In content and style they resemble the Gospel of John. Specifically in the First Epistle of John, Jesus is identified with the divine Christ, and more than in any other New Testament text, God's love of humanity is emphasised.