Johannine Letters
1st, 2nd and 3rd John are referred to as the Johannine Letters. The Apostle John communicates to churches with clarity during a time of confusion, emphasizing themes like truth, love, obedience, and confidence in Christ. Like Paul and the other NT writers he gave instruction to the early church, expanding on the gospel truths that Jesus had introduced.
See also: John (disciple), 1 John; 2 John; 3 John; Pauline epistles.