What does the Bible say about zeal for righteousness?

In Romans 10, the Apostle Paul expresses a deep longing for the salvation of his fellow Jews, indicating that he has a great zeal for their righteousness. However, this zeal must be aligned with knowledge and truth. Paul contrasts the zeal of the Jews, which was enthusiastic but misguided, with the true knowledge of God's righteousness found in Christ. He shows that true righteousness comes not through our works or adherence to the law, but through faith in Jesus Christ, who fulfills the law for all who believe. Thus, a zeal for righteousness must be coupled with an understanding of the saving grace offered in the gospel.