2 John (c.95–100 CE) is a very short letter warning against deceivers who deny Christ’s incarnation. The author urges the community (addressed as 'the elect lady and her children' – possibly a church) to walk in truth and love one another.

Author: Traditionally John the Apostle (the 'elder').

Date Written: Circa 95–100 CE.

Context: Emphasizing the commandment to love, it reinforces the unity of Christian doctrine and practice to prevent schism, reflecting early controversies.