The church father, Jerome, around 400 AD, recorded a story that had been handed down to him, about John the apostle who recorded the words we’ve studied here, and whose three epistles emphasized this love we’re to have for one another.

"The blessed John the Evangelist lived in Ephesus until extreme old age. His disciples could barely carry him to church and he could not muster the voice to speak many words. During individual gatherings he usually said nothing but, 'Little children, love one another.' The disciples and brothers in attendance, annoyed because they always heard the same words, finally said, 'Teacher, why do you always say this?' He replied with a line worthy of John: 'Because it is the Lord's commandment and if it alone is kept, it is sufficient.'"