All Christians are called, capable, and commissioned to evangelize. Paul had more motives for evangelizing that most professing Christians have excuses for not. We want to get people saved so that they can go to Heaven. The harvest is plenty but the laborers are few. As a Christian there is a judgment seat that you will have to give an account for what you have done or didn't do. God will be looking at the motives. We won't be judged on our sin because that has already been taken care of through the death of Christ. But we will be given crown which we will want to cast at His feet. Hell is real, so we need to try our hardest to keep people from it. Out of all the motivations that Paul had, the greatest is from 2 Corinthians 5:14, "For the love of Christ constrainesth us ..."