The Second Vatican Council, in its Dogmatic Constitution on the Church and its Decree on Ecuмenism, made some significant departures from the teaching of Pius XII. It avoided the term member and said nothing of an unconscious desire for incorporation in the Church. It taught that the Catholic Church was the all-embracing organ of salvation and was equipped with the fullness of means of salvation. Other Christian churches and communities possessed certain elements of sanctification and truth that were, however, derived from the one Church of Christ that subsists in the Catholic Church today. For this reason, God could use them as instruments of salvation. God had, however, made the Catholic Church necessary for salvation, and all who were aware of this had a serious obligation to enter the Church in order to be saved. God uses the Catholic Church not only for the redemption of her own members but also as an instrument for the redemption of all. Her witness and prayers, together with the eucharistic sacrifice, have an efficacy that goes out to the whole world.