I don't see a clerical class in the New Testament to which evangelism has been delegated. Preaching is not the only way to evangelize; it can happen in everyday conversations too. And you don't need a special gift to witness to the Lord in these situations.
Mark DeverThe more you come to know the Bible - both in reading it extensively and also meditating on it deeply - the more integrated your understanding of all of life will be. And this means that there will be fewer steps between what you are doing at work and sharing your faith in Christ.
Mark DeverDo you want to know that your new life is real? Commit yourself to a local group of saved sinners. Try to love them. Donโt just do it for three weeks. Donโt just do it for six months. Do it for years. And I think youโll find out, and others will, too, whether or not you love God. The truth will show itself
Mark DeverPeople forget that there is a big difference between coercion and persuasion. The idea that evangelism is coercive is nonsense.
Mark DeverWe may be sinking in the North Atlantic in the most famous ship disaster of all time, but God can still use us to reach out and save others through our witness.
Mark DeverWe need to be realistic and recognize that there will be times when we won't be sharing our faith out of an overwhelming sense of joy. When that happens, that's a call to look at our own devotional lives. Are we putting our hearts and minds before the Lord and under his cross everyday? Do we remind ourselves continually that we have been ransomed by the death of the Saviour? When we meditate on Christ's death for us, it doesn't mean that we never have struggles in our obedience, but it does help.
Mark Dever