Biblion Bible Commentary
Read the introduction to 1 John · About this commentary
The Testimony of God
1 John 5:9-10
9 If we receive the witness of men, the witness of God is greater; for this is God’s testimony which he has testified concerning his Son. · WEB
The argument moves from what people routinely accept to what they will not, and unbelief is described as a verdict passed on God.
Verse 9 argues from the lesser to the greater, and the premise is an observation about ordinary life. If we receive the witness of men — and everyone does, constantly, about parentage, property, and everything not personally witnessed — the witness of God is greater.
The force is in the concession. The letter does not claim that accepting God's testimony requires less evidence than usual. It points out that people already live by testimony they cannot verify, so the objection cannot be to testimony as such.
Verse 10 then divides the outcomes, and both are stated as internal conditions rather than opinions. Whoever believes has the testimony in himself, which brings the argument back to what the letter said about the anointing that remains 1 John 2:27 and the Spirit given 1 John 4:13. The evidence stops being external once it has been received.
The negative half is the sharpest sentence in the chapter. Whoever does not believe God has made him a liar. Unbelief is not treated as a neutral position, a suspension of judgment, or a shortage of evidence. It is treated as a verdict returned on God's own statement.
The letter has used that construction once before, of the man claiming never to have sinned 1 John 1:10. Both times the offense is the same shape: God has said something, and the claim requires him to be wrong.
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