For the name of God is blasphemed among the Gentiles through you, as it is written.

People's New Testament

2:24 For the name of God. The name of God is blasphemed among the Gentiles on account of the vices of the Jews. They make the religion which God has revealed contemptible among the heathen. They judged their religion by the scandalous conduct. Outsiders always judge a religion by the conduct of its votaries.

As it is written. The passage to which Paul refers is found in Isa 52:5.

Wesley's Notes

2:24 Isaiah 52:5

Jamieson-Fausset-Brown Bible Commentary

24. as it is written-(See Isa 52:5, Marginal reference).

Matthew Henry's Concise Commentary

2:17-24 The apostle directs his discourse to the Jews, and shows of what sins they were guilty, notwithstanding their profession and vain pretensions. A believing, humble, thankful glorying in God, is the root and sum of all religion. But proud, vain-glorious boasting in God, and in the outward profession of his name, is the root and sum of all hypocrisy. Spiritual pride is the most dangerous of all kinds of pride. A great evil of the sins professors is, the dishonour done to God and religion, by their not living according to their profession. Many despise their more ignorant neighbours who rest in a dead form of godliness; yet themselves trust in a form of knowledge, equally void of life and power, while some glory in the gospel, whose unholy lives dishonour God, and cause his name to be blasphemed.