The Lasting Lesson of St. John the Apostle
“I give you a new commandment: love one another. As I have loved you, so you also should love one another.” — John 13:34
Imagine having the opportunity to sit at the feet of St. John the Apostle near the end of his life. What would you want to ask him?
Here was a man who had walked with Jesus, witnessed His miracles, seen His glory at the Transfiguration, and stood at the foot of the Cross. He had seen the empty tomb and encountered the risen Christ. According to Christian tradition, he had also endured persecution, been exiled to the island of Patmos, and received the extraordinary visions recorded in the Book of Revelation.
Wouldn’t you want to hear everything?
What was it like to walk beside Jesus? What did He say during those private moments with His disciples? What did John see on Patmos? What did the mysterious visions of Revelation mean?
Surely, a man who had experienced so much would have extraordinary wisdom to share.
Yet an ancient account preserved by St. Jerome tells us that, toward the end of John’s life, when he had grown too weak to deliver lengthy teachings, he repeatedly offered his fellow Christians just one simple instruction:
“Little children, love one another.”
And when they grew frustrated with hearing the same words, he explained that it was the Lord’s commandment, and keeping it was sufficient.
Perhaps there is no better summary of what John had learned during a lifetime of following Jesus.
The Old Apostle in Ephesus
According to early Christian tradition, John spent his final years in Ephesus, an important city in the Roman province of Asia, in what is now western Turkey.
The Church historian Eusebius, writing in the fourth century, preserves accounts that John returned to Ephesus after his exile on Patmos, following the death of Emperor Domitian in AD 96. The early Church Father St. Irenaeus also testified that John remained in Asia into the reign of Emperor Trajan, which began in AD 98.
By this traditional chronology, John lived to an advanced age, possibly until around AD 100. He belonged to the last generation of those who had personally known Jesus during His earthly ministry.
Several centuries later, St. Jerome preserved a beautiful account of John’s final years.
Jerome, who lived approximately AD 347–420, was a priest, biblical scholar, and one of the great teachers of the early Church. He is particularly remembered for translating the Scriptures into Latin, producing the translation that became known as the Vulgate. In his Commentary on Galatians, written around AD 387, Jerome recounts a tradition about John during his extreme old age.
John had grown so frail that his disciples had to carry him into the Christian assembly. He no longer had the strength to speak at length, but he continued to offer the same brief instruction to those gathered around him:
“Little children, love one another.”
Eventually, those listening became tired of hearing the same thing. They asked their teacher why he continually repeated those words.
John’s answer was that this was the Lord’s commandment, and if it was kept, it was sufficient.
Jerome records this tradition while commenting on Galatians 6:10, where St. Paul encourages believers to do good to everyone, especially those belonging to the household of faith.
Although Jerome wrote centuries after John’s death, and we cannot independently establish the exact date of this incident, the account preserves something deeply meaningful about how the early Church remembered the beloved Apostle.
Of all the things John might have taught, the tradition remembers him returning again and again to the commandment of love.
Why “Little Children” Matters
There is a particularly beautiful detail in this story that becomes apparent when we return to John’s Gospel and letters.
The words little children were not simply an affectionate expression John adopted in old age. They appear repeatedly in the writings traditionally attributed to him.
Even more significantly, they were words Jesus Himself had used.
At the Last Supper, as Jesus prepared His disciples for His approaching departure, He addressed them with extraordinary tenderness:
“My children, I will be with you only a little while longer.” — John 13:33
In the original Greek, the expression is teknia, commonly translated as “little children” or “dear children.”
It is an affectionate form of address, expressing tenderness and a close relationship. And in the very next verse, Jesus gives His disciples the new commandment to love one another.
Consider the significance of that connection.
On the night before His death, Jesus spoke to His disciples as His beloved little children and instructed them to love one another as He had loved them.
Decades later, the First Letter of John repeatedly addresses Christians with this same affectionate expression.
In 1 John 2:1, he writes to his little children so that they may avoid sin. In 1 John 2:28, he encourages them to remain in Christ. In 1 John 3:18, he urges them not merely to speak about love but to put it into practice.
And in 1 John 4:7, he makes the connection unmistakable:
“Beloved, let us love one another, because love is of God.”
Throughout the letter, John returns to the relationship between knowing God and loving others. He insists that love is not simply an admirable human quality but something that comes from God and bears witness to our relationship with Him.
The same Apostle who wrote so profoundly about the eternal Word becoming flesh also wrote with the tenderness of a spiritual father addressing his children.
There is something moving about imagining John remembering how Jesus had spoken to him and the other disciples at that final supper.
Little children.
What if those words had remained with him all those years?
What if, after everything he had witnessed and endured, he understood more deeply than ever why Jesus had chosen that tender address before giving His commandment?
We cannot know John’s private thoughts, but the connection between the Gospel, his letters, and Jerome’s account invites us to contemplate the possibility.
Perhaps the old Apostle was not simply repeating a lesson he had taught for years.
Perhaps he was passing along the very words of love that had shaped his entire life.
Of Everything He Could Have Said
This is what makes Jerome’s account so compelling.
John had lived through the earliest years of Christianity. He had witnessed the extraordinary ministry of Jesus and the suffering of the Cross. According to Christian tradition, he had also received visions of heavenly worship, the struggle between good and evil, the final judgment, and the new heaven and new earth.
Imagine the curiosity of those who gathered to hear him.
We do not know what questions they asked, or whether they wanted to hear about Patmos and the visions of Revelation. Jerome does not record those details.
But we can imagine ourselves in their place.
Would we have been satisfied hearing the same few words every time this extraordinary man was brought into the assembly?
Perhaps we, too, would have grown impatient. There would have been so much more we wanted to know.
Yet when John had very little strength remaining, the instruction he continued to give was not about the astonishing things he had seen or the important things he had accomplished.
He returned to what Jesus had commanded.
Little children, love one another.
What a profound lesson about the difference between possessing spiritual knowledge and understanding what matters most.
John’s words were not impressive because they were new. They were important because they came from Christ.
And perhaps that is exactly what the old Apostle wanted his listeners to remember.
The Lesson We Still Need
Nearly two thousand years later, we face a remarkably similar temptation.
There is an enormous appetite today for discussions about biblical prophecy, the end times, private revelations, spiritual experiences, and influential religious personalities.
We can spend hours examining the imagery of Revelation, wondering about the Antichrist, debating the signs of Christ’s return, or listening to extraordinary accounts of visions and miracles.
None of these subjects is necessarily wrong to explore. The Book of Revelation is inspired Scripture, and the Church encourages us to study the Word of God.
But there is a difference between studying something because it leads us closer to Christ and pursuing it primarily because it fascinates us.
Sometimes the mystery becomes more interesting to us than the commandment.
We want to know what will happen in the last days, but how faithfully are we living the Gospel today? We want to understand the great battle between good and evil, but are we struggling against resentment, pride, and selfishness in our own hearts?
We may admire remarkable teachers and spiritual personalities, yet neglect the ordinary people God has placed in our lives.
The danger is not knowledge itself. The danger is allowing our curiosity to become a substitute for conversion.
After all, Jesus did not tell His disciples that the world would recognize them by their understanding of prophecy, their spiritual experiences, or their theological knowledge.
He said:
“This is how all will know that you are my disciples, if you have love for one another.” — John 13:35
That is the distinguishing mark Christ gave His followers.
And it is exactly where the old Apostle returned.
Love Is the Lesson of a Lifetime
Perhaps we sometimes underestimate the commandment to love because it sounds so familiar.
We hear it constantly. We teach it to children. We repeat it in our churches. We see it written on countless inspirational images and greeting cards.
But loving as Jesus loved is anything but easy.
It requires patience when we are frustrated, mercy when we have been wronged, humility when we would rather defend ourselves, and a willingness to sacrifice for the good of others.
It asks us to recognize the dignity of people we find difficult, to forgive without excusing wrongdoing, and to speak the truth with charity rather than contempt.
This is not merely a matter of being pleasant or agreeable. Christian love is rooted in God’s own love and made possible through His grace.
The Catechism of the Catholic Church teaches that charity is the theological virtue through which we love God above all things and our neighbor as ourselves for love of God (CCC 1822).
Charity is what gives life to our Christian obedience. It does not replace faith, truth, or the commandments, but brings them toward their proper fulfillment.
St. Paul explains this beautifully in 1 Corinthians 13. Even if someone possesses extraordinary spiritual gifts, understands mysteries, and has remarkable knowledge, without love those gifts accomplish nothing of lasting spiritual value.
Perhaps that helps us understand John’s final instruction.
After a lifetime of following Christ, John did not appear to regard love as an elementary teaching his listeners could eventually outgrow.
He treated it as something so essential that it deserved to be repeated until his final days.
And perhaps the frustration of his listeners tells us something about ourselves.
We are often ready to move on to the next subject, the next revelation, or the next fascinating spiritual discovery long before we have learned to live the commandment already before us.
What John Wanted Them to Remember
There is something deeply humbling about imagining the final years of this Apostle.
The young fisherman who had once followed Jesus along the shores of Galilee had grown old. The man who had witnessed the Transfiguration and stood beneath the Cross could no longer walk into the assembly without assistance.
His strength was failing, and his voice could offer only a few words.
But those words carried the wisdom of a lifetime.
He had learned that the heart of Christianity was not his own extraordinary experience of knowing Jesus, but the Lord whom he had known and the love that Lord had commanded.
John did not need his listeners to be astonished by him.
He needed them to remember Christ.
And so he continued to address them with the same tenderness found throughout his letters, echoing the words Jesus had spoken to His disciples at the Last Supper.
Little children.
Not students waiting for another remarkable lecture. Not spectators hoping to hear another extraordinary story. But beloved children of God, called to become more like their Father.
And what did he want them to do?
Love one another.
Perhaps this is the lesson we most need to recover today.
We can devote our lives to studying Scripture, exploring theology, and seeking to understand God’s mysteries. These are worthy pursuits, but their fruit should be a deeper love for God and neighbor.
At the end of John’s life, according to the tradition Jerome preserved, the old Apostle returned to the commandment that Jesus had given him so many years before.
Not because there was nothing more he could teach.
But perhaps because, after everything he had seen and learned, he understood that nothing was more important for his listeners to remember.
“Little children, love one another.”
What if we spent less time searching for something more extraordinary and more time learning to live those words?
Scripture and Historical References
Sacred Scripture
- John 13:33–35 — Jesus addresses His disciples as little children and gives the new commandment of love.
- John 15:9–17 — Remaining in Christ’s love.
- 1 John 2:1, 12, 28; 3:7, 18; 4:4; 5:21 — John’s repeated use of teknia, meaning little or dear children.
- 1 John 3:11–18 — Love expressed through action.
- 1 John 4:7–21 — Love comes from God.
- 1 Corinthians 13:1–13 — The necessity and enduring greatness of charity.
Historical and Catholic Sources
- St. Jerome, Commentary on Galatians, Book III, on Galatians 6:10 — The account of John’s final years in Ephesus.
- Eusebius of Caesarea, Ecclesiastical History, III.20 and III.23 — John’s return from Patmos and later ministry.
- St. Irenaeus, Against Heresies, II.22.5 and III.3.4 — John’s residence in Asia into the reign of Trajan.
- Catechism of the Catholic Church, 1822–1829 — The theological virtue of charity.
Historical note: Jerome’s account is an early Christian tradition preserved centuries after John’s death, not a contemporary eyewitness record. The reflection follows the traditional identification of John the Apostle with the Johannine writings, while recognizing that their authorship and dating remain subjects of scholarly discussion.
Fiat & Flame Ministries
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