Verse explainer
The vengeance here is not a threat to the fearful — it's the promise that God's power arrives on their behalf.
Say to them that are of a fearful heart, Be strong, fear not: behold, your God will come with vengeance, even God with a recompence; he will come and save you.
BSBSay to those with anxious hearts: "Be strong, do not fear! Behold, your God will come with vengeance. With divine retribution He will come to save you."
The plain meaning
Isaiah 35 is a vision of dramatic reversal: a desert blooming, the blind seeing, the lame leaping (vv. 5–6). Verse 4 is the announcement that frames all of it. The audience is not the enemy — it is people with anxious, fluttering hearts, those already beaten down by threat and uncertainty. The command "be strong, fear not" echoes the classic Israelite battle-commissioning language (Joshua 1:9), but the courage asked for here is not military — it is the courage to trust that God is actually coming. The "vengeance" and "recompense" are directed at the oppressor, not the discouraged believer. The verse ends where it must: "he will come and save you." The rescue is the point; the judgment is what clears the way for it.
The common misreading
What the commentators say
Gill notes the Hebrew behind 'fearful' is better rendered 'hasty of heart' — people rushing to dark conclusions about their situation, doubting that divine promises will be fulfilled. He traces the 'vengeance' through Christ's first coming (the defeat of Satan and sin), his judgment on Jerusalem, his future destruction of antichrist, and his final return — arguing the verse deliberately spans all these comings, each one an encouragement to present faith.
JFB highlights that the Hebrew is more forcible than English translations render it — closer to 'God will come, vengeance! even God, a recompense!' — a stacking of terms that conveys the sheer decisiveness of the divine arrival. The emphatic repetition is not a threat addressed to the anxious; it is the assurance that the power coming is sufficient to remove every cause of their fear.
The word behind it
'Vengeance' or 'retribution.' In Hebrew the word does not carry the petty or vindictive sense common in English. It describes the decisive action of a rightful authority to set right what has been wronged — closer to 'vindication' than 'revenge.' Here it is what God does to the oppressor so that the oppressed can be saved. Gesenius links it to the idea of avenging the innocent; the same root appears in the vindication of the suffering servant passages.
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