There is a need and an urgency for personal evangelism since Jesus is the only redeemer, there is only one state of man apart from him, and there is only one way for others to know about him and that's through evangelism. So what is evangelism, exactly? How can we know if what we are doing is actually fulfilling our mission of bringing the gospel to the nations? "What then? Only that in every way, whether in pretense or in truth, Christ is proclaimed, and in that I rejoice." Philippians 1:18