supreme task of the Church today is … to take the good news to those who have not heard it.’ It continued: ‘We call on all our people to engage in this campaign and to put themselves into training for it. Every man, woman and child has his part to take.’20 The equivalent encyclical letter in 1958 affirmed that ‘the world-wide task of evangelism is not an “optional extra”: it is the high calling of every disciple.’21 We suspect that Bishop Joost de Blank contributed the expression in inverted commas,