And he did not permit him but said to him, “Go home to your friends and tell them how much the Lord has done for you, and how he has had mercy on you.” Mark 5:19.
“One thing I have observed in all my years of ministry is that the most effective and important aspects of evangelism usually take place on an individual, personal level. Most people do not come to Christ as an immediate response to a sermon they hear in a crowded setting. They come to Christ because of the influence of an individual.” – John MacArthur