For I say to you, that from this time I will not eat it, till it be fulfilled in the kingdom of God. And having taken the chalice, he gave thanks, and said: Take, and divide it among you: For I say to you, that I will not drink of the fruit of the vine, till the kingdom of God come. And taking bread, he gave thanks, and brake; and gave to them, saying: This is my body, which is given for you. Do this for a commemoration of me. In like manner the chalice also, after he had supped, saying: This is the chalice, the new testament in my blood, which shall be shed for you.
"Do this for a commemoration of me"... This sacrifice and sacrament is to be continued in the church, to the end of the world, to shew forth the death of Christ, until he cometh. But this commemoration, or remembrance, is by no means inconsistent with the real presence of his body and blood, under these sacramental veils, which represent his death; on the contrary, it is the manner that he himself hath commanded, of commemorating and celebrating his death, by offering in sacrifice, and receiving in the sacrament, that body and blood by which we were redeemed.
And one of those robbers who were hanged, blasphemed him, saying: If thou be Christ, save thyself and us. But the other answering, rebuked him, saying: Neither dost thou fear God, seeing thou art condemned under the same condemnation?
And we indeed justly, for we receive the due reward of our deeds; but this man hath done no evil. And he said to Jesus: Lord, remember me when thou shalt come into thy kingdom. And Jesus said to him: Amen I say to thee, this day thou shalt be with me in paradise. And it was almost the sixth hour; and there was darkness over all the earth until the ninth hour. And the sun was darkened, and the veil of the temple was rent in the midst.
"In paradise"... That is, in the happy state of rest, joy, and peace everlasting. Christ was pleased, by a special privilege, to reward the faith and confession of the penitent thief, with a full discharge of all his sins, both as to the guilt and punishment; and to introduce him immediately after death into the happy society of the saints, whose limbo, that is, the place of their confinement, was now made a paradise by our Lord's going thither.
And Jesus crying out with a loud voice, said: Father, into thy hands I commend my spirit. And saying this, he gave up the ghost.
Here is a Good Friday hymn called Crux Fidelis.
Here is a Good Friday reflection by Fr. Benedict Groeschel.
Leticia at My Daily Trek has posted a very moving video remembering Jesus' great Sacrifice.