He that loveth not knoweth not God; for God is love.

1 JOHN 4:8KJV
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1 John 4:8 (KJV)

What does 1 John 4:8 mean?

1 John 4:8 says that anyone who does not love does not truly know God, because God’s very nature is love. The verse connects knowing God with showing love, making love the key evidence of a real relationship with God.

John, one of Jesus’s closest followers, is writing to a group of Christians who are facing confusion and division about what it means to truly know God. In this verse, John draws a clear line: genuine knowledge of God always results in love for others, because God himself is defined by love. This is not just a feeling, but a way of living that reflects God’s character.

The Greek behind 1 John 4:8

  • "loveth" (ἀγαπᾷ, agapaō): This Greek word points to a self-giving, active kind of love, not just affection or emotion. John is saying that the absence of this kind of love shows a person does not really know God.
  • "knoweth" (γινώσκει, ginōskō): This word often means a deep, personal knowledge, not just information. John is talking about a real, lived connection with God, not just knowing about God.
  • "love" (ἀγάπη, agapē): This is the same word used to describe God’s own love—unconditional, self-sacrificing, and central to who God is. John is not saying God is loving sometimes, but that love is at the core of God’s identity.

Why 1 John 4:8 matters

  • This verse clears up the idea that knowing God is only about beliefs or rituals; John insists that love is the true test of knowing God.
  • John’s statement that “God is love” is one of the clearest and strongest declarations about God’s nature in the whole Bible, shaping how Christians understand everything else about God.
  • In the wider passage, John is urging his readers to love one another as proof that their faith is real and rooted in God’s own character.

Where else these words appear

“love” Greek G26 · used in 106 verses

  • Matthew 24:12 And because iniquity shall abound, the love of many shall wax cold.
  • 2 Corinthians 13:14 The grace of the Lord Jesus Christ, and the love of God, and the communion of the Holy Ghost, be with you all. Amen. The second epistle to the Corinthians was written from Philippi, a city of Macedonia, by Titus and Lucas.
  • 1 Timothy 6:11 But thou, O man of God, flee these things; and follow after righteousness, godliness, faith, love, patience, meekness.

“loveth” Greek G25 · used in 109 verses

  • Matthew 5:43 Ye have heard that it hath been said, Thou shalt love thy neighbour, and hate thine enemy.
  • John 15:9 As the Father hath loved me, so have I loved you: continue ye in my love.
  • 2 Thessalonians 2:16 Now our Lord Jesus Christ himself, and God, even our Father, which hath loved us, and hath given us everlasting consolation and good hope through grace,