The document discusses the purpose of the law in revealing man's sin and inability to attain righteousness through obeying it. It explains that righteousness can only be attained through faith in Jesus Christ, whose perfect righteousness is credited to believers. When people accept Jesus' sacrifice by faith, God sees them as righteous due to Jesus' righteousness, rather than their own works or righteousness. The law is not abolished but believers are no longer condemned by it but strive to obey it out of faith in Christ.