Verse explainer
Faith isn't a private spark you work up — it arrives through a message proclaimed, and that message has a specific source.
So then faith cometh by hearing, and hearing by the word of God.
BSBConsequently, faith comes by hearing, and hearing by the word of Christ.
The plain meaning
Paul has just run through a chain in vv. 14-16: people call on whom they haven't believed, believe in whom they haven't heard, hear without a preacher, and preachers can't go unless sent. Verse 17 is the conclusion that clinches the chain. Faith is not self-generated willpower or an inner feeling you muster; it is a response to something heard — specifically, the proclaimed message about Christ. The phrase 'word of God' in the KJV renders what several manuscripts and the BSB read as 'word of Christ,' meaning the message whose content is Christ himself. The point is structural: God sends preachers, preachers speak, hearers receive, faith arises. No link in the chain is optional. This also answers the question Paul raised in v. 14 about the Gentiles — the preaching mission to them is not an afterthought but the very mechanism by which God planned to produce faith.
The common misreading
What the commentators say
Clarke reads this as establishing preaching as God's ordinary means of salvation. Hearing the word attentively is not passive: if the report is truly heard, faith is produced, and where faith takes root, God's saving power is revealed. The verse thus defends the preaching office as indispensable, not incidental.
Gill traces the full logic: invocation rests on faith, faith on hearing, hearing on preaching, and preaching on a divine commission. The 'word of Christ' reading points to Christ's own authority behind the missionary mandate — ministers preach in obedience to his command, not on their own initiative. The verse is therefore the theological capstone of the entire passage.
JFB stress that the verse confirms faith's necessary dependence on the proclaimed word, and that dependence in turn confirms the necessity of a formal commission to preach. You cannot have the fruit without the root, and the root requires a sender.
The word behind it
'Word' here is rhēma — a spoken utterance, a word actually said aloud — rather than logos, which can denote a written text or abstract reason. The choice matters: Paul is emphasizing the oral, proclaimed event of preaching, not silent reading or private reasoning. Faith, in this frame, arises from hearing a spoken message about Christ, which is why the sending of preachers in vv. 14-15 is load-bearing.
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