Paul's second missionary journey reveals several principles about living lives as servants. The first principle is that God works through broken people, as evidenced through the disagreement between Paul and Barnabas. It also shows the need for servants of God to take chances, be challenged and grow from failure. Secondly, servants of God will relate to the culture around us, while remaining distinct, to reflect God to those who don't know Him. Lastly, servants who want to be used by God are led by the Holy Spirit. Practicing these principles will keep us effective in glorifying God with our lives.