Roman Catechism 11.54

Chapter 11 — Part I: The Creed — Article IX: The Holy Catholic Church; the Communion of Saints

Section 54. Since this power, therefore, cannot be of human origin, divine faith can alone enable us to understand that the keys of the. kingdom of heaven are deposited with the Church, that to her has been confided the power of remitting sins," of denouncing excommunication, and of consecrating the real body of Christ; and t}tat her children have not here a permanent dwelling, but look for one above.