Paul continues the double entendre. He is a literal prisoner in Rome for Christ sake but He has surrendered his life to Christ making himself a prisoner of Christ even when not jailed for the testimony of Jesus Christ. <p> He begs us to walk worthy of Christ. He says that it is our vocation.  We do that by valuing the sacrifice, His mercy, His forgiveness, His HolySpirit, His love and becoming His witness to all in our circle.