Redemptoris missio, subtitled On the permanent validity of the Church's missionary mandate, is an encyclical by Pope John Paul II published on 7 December 1990. The release coincided with the twenty-fifth anniversary of Vatican II's Decree on the Church's Missionary Activity, Ad gentes. It is devoted to the subject of "the urgency of missionary activity" and in it the pope wished "to invite the Church to renew her missionary commitment."