Mark 5:18-20

18And when he had come into the boat, he that had been possessed with the demon begged him that he might be with him. 19However Jesus permitted him not, but saith to him, Go home to thy friends, and tell them what great things the Lord hath done for thee, and hath had compassion on thee. 20And he departed, and began to proclaim in Decapolis what great things Jesus had done for him: and all men marvelled.