“Pius, bishop, servant of the servants of God, with the approval of the Sacred Council, for an everlasting record.
1. The Son of God, redeemer of the human race, our lord Jesus Christ, promised, when about to return to his heavenly Father, that he would be with this Church militant upon earth all days even to the end of the world [conf. Mt 28, 20.]. Hence never at any time has he ceased to stand by his beloved bride, assisting her when she teaches, blessing her in her labors and bringing her help when she is in danger.
2. Now this redemptive providence appears very clearly in unnumbered benefits, but most especially is it manifested in the advantages which have been secured for the Christian world by ecumenical councils, among which the Council of Trent requires special mention, celebrated though it was in evil days.
3. Thence came 1. a closer definition and more fruitful exposition of the holy dogmas of religion and 2. the condemnation and repression of errors; thence too, 3. the restoration and vigorous strengthening of ecclesiastical discipline, 4. the advancement of the clergy in zeal for learning and piety, 5. the founding of colleges for the training of the young for the service of religion; and finally 6. the renewal of the moral life of the Christian people by a more accurate instruction of the faithful, and a more frequent reception of the sacraments. What is more, thence also came 7. a closer union of the members with the visible head, and an increased vigor in the whole mystical body of Christ. Thence came 8. the multiplication of religious orders and other organizations of Christian piety; thence too 9. that determined and constant ardor for the spreading of Christ's kingdom abroad in the world, even at the cost of shedding one’s blood.”  Pope Pius IX, Vatican Council, Session 3 : 24 April 1870Dogmatic constitution on the Catholic faith