“Father, forgive them,' said Jesus, 'for they know not what they do' -- People of good sense whoever you may be, I will add, do not listen to them, for they know not what they say.”

Half-Truths and One-And-A-Half Truths (1976)

Philip: And When He Died All Mankind Died
Jesus, The Son of Man (1928)
Context: I too died. But in the depth of my oblivion I heard Him speak and say, "Father forgive them, for they know not what they do."
And His voice sought my drowned spirit and I was brought back to the shore.
And I opened my eyes and I saw His white body hanging against the cloud, and His words that I had heard took the shape within me and became a new man. And I sorrowed no more.
Who would sorrow for a sea that is unveiling its face, or for a mountain that laughs in the sun?
Was it ever in the heart of man, when that heart was pierced, to say such words?
What other judge of men has released His judges? And did ever love challenge hate with power more certain of itself?
Was ever such a trumpet heard 'twixt heaven and earth?
Was it known before that the murdered had compassion on his murderers? Or that the meteor stayed his footsteps for the mole?
The seasons shall tire and the years grow old, ere they exhaust these words: "Father forgive them, for they know not what they do."

Angelus (24 September 1978) http://www.vatican.va/holy_father/john_paul_i/angelus/documents/hf_jp-i_ang_24091978_en.html
Context: People sometimes say: "we are in a society that is all rotten, all dishonest." That is not true. There are still so many good people, so many honest people. Rather, what can be done to improve society? I would say: let each of us try to be good and to infect others with a goodness imbued with the meekness and love taught by Christ. Christ's golden rule was: "do not do to others what you do not want done to yourself. Do to others what you want done to yourself." 'And he always gave. Put on the cross, not only did he forgive those who crucified him, but he excused them. He said: "Father, forgive them for they know not what they do." This is Christianity, these are sentiments which, if put into practice would help society so much.

Source: The Portrait of a Lady (1881), Ch. XXII.

Song lyrics, The Freewheelin' Bob Dylan (1963), Masters of War

A Man Without a Country (2005)

Source: Always True (Moody, 2011), p. 85

Source: The Animal Welfare Movement and the Foundations of Ethics, pp. 94-95