Also, he was a member of the sect of the Pharisees, who said they well kept the law. Before his conversion, he persecuted the congregation of the Lord. But after he met Jesus on the way to Damascus, he wholly changed. Being a zealous persecutor before his conversion, he became a zealous preacher of the faith after that. We see what grace can bring about.
Grace changes the greatest sinners to holy people.
From thieves, grace makes diligent workers. From murderers, grace makes caring people. From persecutors of the faith, grace makes zealous preachers of the truth. Of haters, grace makes lovers. Of wild and cruel beasts, it makes pleasant people.