Catechism of the Catholic Church

On her pilgrimage, the Church has also experienced the "discrepancy existing between the message she proclaims and the human weakness of those to whom the Gospel has been entrusted." Only by taking the "way of penance and renewal," the "narrow way of the cross," can the People of God extend Christ's reign. For "just as Christ carried out the work of redemption in poverty and oppression, so the Church is called to follow the same path if she is to communicate the fruits of salvation to men." (1428, 2443)