John 13:35
“By this shall all men know that ye are my disciples, if ye have love one to another.”
King James Version (KJV)
Read this verse in context with translation switching:
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At the Last Supper, after giving a new commandment to love one another, Jesus tells His disciples that this love will be the distinguishing mark by which the world recognizes them as His.
What Does John 13:35 Mean?
Jesus is saying that the clearest sign of belonging to Him is not outward profession but visible, mutual love among His followers. He has just given what He calls a "new commandment" -- to love one another as He has loved them (verse 34). Now He explains the effect such love will have: it will mark His disciples before a watching world. The badge of a Christian is not a slogan, a building, or a religious reputation, but love that can be seen and felt.
The phrase "all men" reaches beyond the circle of believers to everyone outside it. Jesus envisions a community whose love is so genuine and self-giving that observers cannot help but notice and conclude that these people truly follow Him. The standard is high: "as I have loved you." This is not mere sentiment or polite tolerance, but the costly, serving, forgiving love Jesus displayed -- the same love that, within hours, would carry Him to the cross. Spoken at the Last Supper, these words turn discipleship outward. Our love for one another becomes a witness, drawing others toward Christ or, by its absence, obscuring Him. The strength of the church's testimony rests not first on argument but on the visible reality of believers who genuinely love each other.
In the Original Language
The Greek "agape" (ἀγάπη) describes self-giving, deliberate love, and "mathetai" (μαθηταί) means disciples or learners -- those whose lives are shaped by following their teacher.
Cross References
“A new commandment I give unto you, That ye love one another; as I have loved you, that ye also love one another.”
- John 13:34
“No man hath seen God at any time. If we love one another, God dwelleth in us, and his love is perfected in us.”
- 1 John 4:12
“We know that we have passed from death unto life, because we love the brethren. He that loveth not his brother abideth in death.”
- 1 John 3:14
Application
Make love for fellow believers your most visible witness, knowing the world reads the reality of your faith chiefly through how you treat one another.