Pope Francis
Fratelli Tutti §247
Fratelli Tutti: On Fraternity and Social Friendship
247 The Shoah must not be forgotten. It is “the enduring symbol of the depths to which human evil can sink when, spurred by false ideologies, it fails to recognize the fundamental dignity of each person, which merits unconditional respect regardless of ethnic origin or religious belief”. As I think of it, I cannot help but repeat this prayer: “Lord, remember us in your mercy. Grant us the grace to be ashamed of what we men have done, to be ashamed of this massive idolatry, of having despised and destroyed our own flesh which you formed from the earth, to which you gave life with your own breath of life. Never again, Lord, never again!”.
Source: Fratelli Tutti (Vatican.va)