Biblion Bible Commentary
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You Who Teach Another
Romans 2:21-24
21 You therefore who teach another, don’t you teach yourself? You who preach that a man shouldn’t steal, do you steal? · WEB
The teacher is examined from his own syllabus, and the verdict quoted is the bitterest sentence available — God's name blasphemed because of you.
You therefore who teach another, don't you teach yourself?
The résumé of the previous verses ends in a question, and then in a volley of them, each built the same way: the curriculum quoted, then turned. You who preach that a man shouldn't steal, do you steal? You who say a man shouldn't commit adultery, do you commit adultery? You who abhor idols, do you rob temples?
The examination uses only the teacher's own material — theft, adultery, idolatry, the syllabus of the second table — which is the method's severity: nobody is being judged by a foreign standard. The third question lands the hardest and strangest: do you rob temples? The man whose abhorrence of idols defines him is asked whether he profits from their world all the same — a charge of trafficking with the very thing professed to be detestable. Detestation as identity, accommodation as practice.
Verse 23 gathers the pattern into the general charge: you who glory in the law, do you dishonor God by disobeying the law? Glorying and dishonoring, out of the same book. The law carried as a trophy and broken as a rule.
And then the verdict, and Paul does not write it himself — he quotes it: for "the name of God is blasphemed among the Gentiles because of you," just as it is written Romans 2:24.
The sentence is Isaiah's and Ezekiel's, spoken over the exile: Israel's condition among the nations gave the nations their opinion of Israel's God. Paul lifts it into the present tense. The people carrying God's name in the world determine, by their conduct, what the world concludes about the name — and the conclusion being drawn is blasphemy. The teacher's failure is never private; it publishes.
That is the exact inversion of the vocation just listed Romans 2:19. Called to be light to those in darkness, the privileged have become the reason the darkness curses the light's source. The argument needs nothing further: privilege without practice does not merely fail to help — it actively manufactures the world's contempt for God. What remains for the chapter is the credential itself, circumcision, and whether it can survive the same examination.
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