The Second Letter of John

Travelling teachers. The first churches met in houses, and they depended on travelling preachers, whom they welcomed, fed and sent on. This was a great strength. It also meant that a false teacher could use a Christian home as a platform. To welcome such a person meant giving him a base in the community.

The same crisis as 1 John. "Many deceivers have gone out into the world" (v. 7) repeats the concern of 1 Jn 2:18 to 19 and 4:1 to 3. It looks as if the division had begun to spread from church to church, and the elder writes ahead to warn a congregation at a distance.

"Elect lady". "The elect lady and her children" (v. 1) and "your elect sister" (v. 13) are most easily read as a church and a sister church, as the Catholic Encyclopedia reads them. The letter moves between "you" singular and "you" plural, and everyone who "knows the truth" loves her (v. 1). Some have thought of an actual Christian woman, perhaps the host of a house church. The text does not settle it. Either way it shows how tenderly the elder thinks of a community.

The Church's tradition. Tradition has given this letter to John the Apostle, and the likeness to 1 John is very close. St Irenaeus, late in the second century, quotes verse 7 from the Epistle of "His disciple" (Against Heresies 3.16.8), and he uses verses 10 to 11 in 1.16.3. The Council of Trent (1546) received "three of John the apostle".

A slow reception. A letter this brief circulated less. Origen says of John that he left "perhaps also a second and third" and "not all consider them genuine" (Eusebius, Church History 6.25). Eusebius lists these two among the disputed books (3.25). St Athanasius in 367 lists three letters of John.

A scholarly note. Traditionally by John the Apostle. St Jerome reports that many in his day gave this letter and 3 John to "John the presbyter" (Illustrious Men 9, 18), and many scholars still think of an elder of John's circle. The Catholic Encyclopedia argues for the Apostle. The Church has defined the letter as inspired, not the identity of the elder (Dei Verbum 11).

• Truth and love are never separated. The word "truth" comes five times in the first four verses. Love without truth goes soft; truth without love goes hard. The greeting holds them together: "in truth and love" (v. 3).
• Love is the old commandment. Nothing new: "one we have had from the beginning" (v. 5), the command of Jesus (Jn 13:34; Catechism 2822). And love means walking according to his commandments (v. 6).
• Christ truly came in the flesh. Verse 7 is one of the earliest defences of the Incarnation. The Catechism cites it in its teaching on the true humanity of Christ (465) and on the final trial and deception (675).
• Abide in the teaching. Whoever "goes beyond" the teaching of Christ loses God (v. 9). Progress in understanding is good and belongs to the Church's life (Dei Verbum 8). What is warned against is leaving what was given.
• Discernment in hospitality. "Do not receive into the house or welcome" one who brings such teaching (v. 10). In its setting this means: do not give a false teacher a base and a blessing for his mission. It is no rule of rudeness. Nor is it a word against non-Christians or Christians of other churches today, to whom the Church asks respect and love (Catechism 818; Nostra Aetate 2). Jesus himself ate with sinners, and 3 John praises hospitality.
• Joy needs presence. "I would rather not use paper and ink" (v. 12). The Gospel travels best between people who meet.

Jesus appears here as "the Father's Son" (v. 3), and as the one who "has come in the flesh" (v. 7). The two titles together say what the Church confesses of him: true God and true man. To have the teaching of Christ is to have "both the Father and the Son" (v. 9). The letter asks for nothing less than a real Jesus.

The Catechism cites verse 7 at 465 and 675.

The Fathers, in substance. St Irenaeus uses this letter against the errors of his time. Those who deny the flesh of Christ are to be avoided, he says, and he takes verses 10 to 11 as a warning not to wish such teachers well in their work (Against Heresies 1.16.3; 3.16.8).

In the liturgy.

• Latin. Read once in two years: 2 Jn 4 to 9 on the Friday of the Thirty-second Week in Ordinary Time, Year II. Never on a Sunday.
• Syro-Malankara and Syro-Malabar. We did not find it among the readings of the Qurbono or Qurbana in the 2026 to 2027 calendars we examined. Those calendars do not cover every weekday, so it may be read at other times.

It takes two minutes. Read it aloud, then read 1 Jn 4:1 to 12 beside it. Then read it once more and underline every "truth" and "love". Ask which one you find harder to hold just now.