In this message on 1 Corinthians 9:19–23 from TGC’s 2009 National Conference, Don Carson discusses the concept of flexibility in gospel proclamation. He explains how Paul adapted his message to different audiences and emphasizes the need to win people to Christ without compromising the gospel. Carson considers John Travis’s “C1 to C6 spectrum” of Christ-centered communities in light of Paul’s message and highlights the importance of flexibility in evangelism while maintaining the integrity of the gospel message.