What does the Bible say about persecution for righteousness' sake?

In Matthew 5:10, Jesus declares, 'Blessed are they which are persecuted for righteousness' sake: for theirs is the kingdom of heaven.' This beatitude highlights that persecution is a hallmark of authentic faith and a reflection of one's alignment with God's righteousness. The context of this blessing is crucial; it recognizes that standing firm in the truth of the gospel, particularly the nature of salvation by grace through faith, will inevitably draw opposition from those who cling to their own works and self-righteousness. The weight of this teaching shows that such persecution is not only expected but also honorable in God's eyes, for it connects believers to the sufferings of Christ.