John 19:31-37
31 Now since it was preparation day, in order that the bodies might not remain on the cross on the sabbath, for the sabbath day of that week was a solemn one, the Jews asked Pilate that their legs be broken and they be taken down.
32 So the soldiers came and broke the legs of the first and then of the other one who was crucified with Jesus.
33 But when they came to Jesus and saw that he was already dead, they did not break his legs,
34 but one soldier thrust his lance into his side, and immediately blood and water flowed out.
35 An eyewitness has testified, and his testimony is true; he knows that he is speaking the truth, so that you also may (come to) believe.
36 For this happened so that the scripture passage might be fulfilled: "Not a bone of it will be broken." 3
7 And again another passage says: "They will look upon him whom they have pierced."
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Friday's gospel celbrates the Feast of the Sacred Heart of Jesus. Courtesy of Google, here's some background:
Link: http://catholicism.about.com/od/holydaysandholidays/p/Sacred_Heart.htm
Devotion to the Sacred Heart of Jesus goes back at least to the 11th century, but through the 16th century, it remained a private devotion, often tied to devotion to the Five Wounds of Christ. The first feast of the Sacred Heart was celebrated on August 31, 1670, in Rennes, France, through the efforts of Fr. Jean Eudes (1602-1680). From Rennes, the devotion spread, but it took the visions of St. Margaret Mary Alacoque (1647-1690) for the devotion to become universal. In all of these visions, in which Jesus appeared to St. Margaret Mary, the Sacred Heart of Jesus played a central role.
The “great apparition,” which took place on June 16, 1675, during the octave of the Feast of Corpus Christi, is the source of the modern Feast of the Sacred Heart. In that vision, Christ asked St. Margaret Mary to request that the Feast of the Sacred Heart be celebrated on the Friday after the octave (or eighth day) of the Feast of Corpus Christi, in reparation for the ingratitude of men for the sacrifice that Christ had made for them.
The Sacred Heart of Jesus represents not simply His physical heart but His love for all mankind.The devotion became quite popular after St. Margaret Mary’s death in 1690, but, because the Church initially had doubts about the validity of St. Margaret Mary’s visions, it wasn’t until 1765 that the feast was celebrated officially in France.
Almost 100 years later, in 1856, Pope Pius IX, at the request of the French bishops, extended the feast to the universal Church. It is celebrated on the day requested by our Lord—the Friday after the octave of Corpus Christi, or 19 days after Pentecost Sunday.
From another website, here's a description of one of the visions: Margaret Mary Alacoque entered the Visitation Convent in 1671 and six years later Christ appeared to her in a vision in which "I could plainly see His heart, pierced and bleeding, yet there were flames, too, coming from it and a crown of thorns around it. He told me to behold His heart which so loved humanity. Then He seemed to take my very heart from me and place it there in His heart. In return He gave me back part of His flaming heart."
