"It is true that some preach Christ out of envy and rivalry, but others out of goodwill. The latter do so out of love, knowing that I am put here for the defense of the gospel. The former preach Christ out of selfish ambition, not sincerely, supposing that they can stir up trouble for me while I am in chains. But what does it matter? The important thing is that in every way, whether from false motives or true, Christ is preached. And because of this I rejoice."
Because of Paul's boldness in proclaiming the good news of grace through the person of Christ while in the face of persecution from both legalistic believers and non-believers, many grace believers began to proclaim the person and finished work of Jesus more boldly.