For the name of God is blasphemed among the Gentiles through you,
as it is written.
Read Chapter 2
Isaiah the prophet said this because God’s name was being blasphemed among the Gentiles when the Jews, by their misdeeds, did not observe the things which were handed down to them but instead gave glory to idols…. So also at the time of the apostles, God’s name was being blasphemed in Christ, because the Jews, by denying that Christ was God, were blaspheming the Father also, as the Lord said: “Whoever receives me does not receive me, but him who sent me.” Therefore God was blasphemed among the Gentiles because when they believed in Christ the Jews tried to persuade them not to call Christ “God.” Commentary on Paul’s Epistles.
Even if the Jews have been alienated from God, because on their account the name of God is blasphemed among the Gentiles, nonetheless they are dear to God. Through their discipline the name of the Lord is adorned with praiseworthy testimony.
The apostle here only repeats the reproaches which the prophets had repeated so often before, that the Jews, by the contrast between their lives and the sanctity of their religion, had been the cause of that religion and worship being the ridicule and laughing-stock of the Gentile world. (Calmet)
A reproach this, which also bears very heavy upon many Christians of the present day; who by their profession believe the truth of the one, holy, Catholic, and apostolic faith, and by their conduct belie the same, leading lives unworthy of pagans. (Haydock)
Here Paul makes another double accusation. The Jews not only commit insolence themselves; they even persuade others to do the same. What then is the use of their teaching, if they cannot teach themselves? … But it is much worse than this, for not only do the Jews not teach the law, they actually teach others to blaspheme God, which is the very opposite of the law.
There is a blasphemy which we must avoid completely, viz., that any of us should give a pagan good cause for blasphemy by deceit or injury or insult or some other matter justifying complaint. It is that blasphemy in which the Name is deservedly blamed, so that the Lord is deservedly angry. But the words “Because of you my Name is blasphemed” seem to cover every blasphemy. So then, are we all lost, since the whole Roman circus assails the Name, for no fault of ours, with its wicked outcries? Shall we stop being Christians in order for there to be less blasphemy? No! If the blasphemy continues, we will observe our discipline, not abandoning it, as long as we are being approved and not condemned. The blasphemy which affirms our Christian faith by detesting us because of it is in close proximity to martyrdom. To curse us for keeping our discipline is to bless our Name.
Blasphemy it has been said, "By your means My Name is blasphemed".
Until the advent of Christ: thereafter it ceased curatively to remove from Israel infirmities of health; since, as the result of their perseverance in their frenzy, the name of the Lord was through them blasphemed, as it is written: "On your account the name of God is blasphemed among the Gentiles: ".
That the apostle abstained through fear from openly calumniating God, from whom notwithstanding He did not hesitate to withdraw men? Well, but he had gone so far in his censure of the Jews, as to point against them the denunciation of the prophet, "Through you the name of God is blasphemed (among the Gentiles)."