1 John 5:13 (KJV)

What does 1 John 5:13 mean?

1 John 5:13 says that the writer, John, is telling those who believe in Jesus—the Son of God—that he has written these things so they can know with certainty that they have eternal life. John’s purpose is to give assurance and encourage ongoing trust in Jesus’ name.

John is writing to a group of believers who may have questions or doubts about their relationship with God and the promise of eternal life. By saying “these things have I written,” John points back to his whole letter, which explains what it means to believe in Jesus and live as God’s children. The verse highlights knowing, not just hoping, that eternal life is real for those who trust in Jesus.

The Greek behind 1 John 5:13

• “Believe” (πιστεύω, pisteuō) means to trust or have faith in. Here, it emphasizes a personal, ongoing trust in Jesus, not just an intellectual agreement.
• “Know” (εἰδῶ, eidō) carries the sense of certain, confident knowledge, not just a vague hope or wish. John wants his readers to be sure about their eternal life.
• “Eternal” (αἰώνιος, aiōnios) means everlasting, without end. The life John describes is not temporary or uncertain, but lasting forever.
• “Name” (ὄνομα, onoma) refers to the full character and authority of Jesus, not just his title. Believing “on the name” means trusting who Jesus truly is as the Son of God.

Why 1 John 5:13 matters

• 1 John 5:13 clears up the common fear that eternal life is uncertain or only for a select few; John says believers can know they have it.
• The verse shows that faith is not a one-time event, but an ongoing trust in Jesus’ name and identity.
• This verse connects the whole letter, showing that John’s teachings are meant to give assurance and confidence to believers, not leave them guessing about their standing with God.