What does the Bible say about works righteousness?

Works righteousness is the belief that one can achieve God's favor through personal effort or moral behavior. The Bible teaches that this is a delusion that undermines the gospel message. Paul warns about these deceivers who promote a false gospel centered on human effort and contradicts the truth of grace (Titus 1:10-11). Instead of trusting in their works, believers are called to rely on faith in Christ, who fulfilled the law on their behalf (Romans 10:4). This reliance on grace alone grants believers the assurance of salvation and acceptance before God.