The command to the Twelve to go out and proclaim the Good News is also valid for all Christians, though in a different way.... the Good News of the kingdom which is coming and which has begun is meant for all people of all times. Those who have received the Good News and who have been gathered by it into the community of salvation can and must communicate and spread it.
Catholic Church. Pope (1963-1978 : Paul VI), Pope Paul VI (1976). “On evangelization in the modern world: Apostolic exhortation Evangelii nuntiandi, December 8, 1975”