Jesus instructed the Twelve as follows: ‘Remember, I am sending you out like sheep among wolves; so be cunning as serpents and yet as harmless as doves.
‘Beware of men: they will hand you over to sanhedrins and scourge you in their synagogues. You will be dragged before governors and kings for my sake, to bear witness before them and the pagans. But when they hand you over, do not worry about how to speak or what to say; what you are to say will be given to you when the time comes; because it is not you who will be speaking; the Spirit of your Father will be speaking in you. ‘Brother will betray brother to death, and the father his child; children will rise against their parents and have them put to death. You will be hated by all men on account of my name; but the man who stands firm to the end will be saved. If they persecute you in one town, take refuge in the next; and if they persecute you in that, take refuge in another. I tell you solemnly, you will not have gone the round of the towns of Israel before the Son of Man comes.’
Source: Jerusalem Bible
Catechism of the Catholic Church
The Church – instituted by Christ Jesus
763 It was the Son’s task to accomplish the Father’s plan of salvation in the fullness of time. Its accomplishment was the reason for his being sent. “The Lord Jesus inaugurated his Church by preaching the Good News, that is, the coming of the Reign of God, promised over the ages in the scriptures.” To fulfill the Father’s will, Christ ushered in the Kingdom of heaven on earth. The Church “is the Reign of Christ already present in mystery.”
764 “This Kingdom shines out before men in the word, in the works and in the presence of Christ.” To welcome Jesus’ word is to welcome “the Kingdom itself.” The seed and beginning of the Kingdom are the “little flock” of those whom Jesus came to gather around him, the flock whose shepherd he is. They form Jesus’ true family. To those whom he thus gathered around him, he taught a new “way of acting” and a prayer of their own.
765 The Lord Jesus endowed his community with a structure that will remain until the Kingdom is fully achieved. Before all else there is the choice of the Twelve with Peter as their head. Representing the twelve tribes of Israel, they are the foundation stones of the new Jerusalem. The Twelve and the other disciples share in Christ’s mission and his power, but also in his lot. By all his actions, Christ prepares and builds his Church.
766 The Church is born primarily of Christ’s total self-giving for our salvation, anticipated in the institution of the Eucharist and fulfilled on the cross. “The origin and growth of the Church are symbolized by the blood and water which flowed from the open side of the crucified Jesus.” “For it was from the side of Christ as he slept the sleep of death upon the cross that there came forth the ‘wondrous sacrament of the whole Church.'” As Eve was formed from the sleeping Adam’s side, so the Church was born from the pierced heart of Christ hanging dead on the cross.
Saint Kateri Tekakwitha
Saint Kateri Tekakwitha (pronounced [ˈɡaderi deɡaˈɡwita] in Mohawk), given the name Tekakwitha, baptized as Catherine and informally known as Lily of the Mohawks (1656 – April 17, 1680), is a Roman Catholic saint who was an Algonquin–Mohawk laywoman. Born in the Mohawk village of Ossernenon, on the south side of the Mohawk River, she contracted smallpox in an epidemic; her family died and her face was scarred. She converted to Roman Catholicism at age nineteen, when she was renamed Kateri, baptized in honor of Saint Catherine of Siena. Refusing to marry, she left her village and moved for the remaining 5 years of her life to the Jesuit mission village of Kahnawake, south of Montreal in New France, now Canada.
Tekakwitha took a devout vow of perpetual virginity. Upon her death at the age of 24, witnesses said that minutes later her scars vanished and her face appeared radiant and beautiful. Known for her virtue of chastity and mortification of the flesh, as well as being shunned by some of her tribe for her religious conversion to Catholicism, she is the fourth Native American to be venerated in the Roman Catholic Church and the first to be canonized.
Under the pontificate of Pope John Paul II, she was beatified in 1980 and canonized by Pope Benedict XVI at Saint Peter’s Basilica on 21 October 2012. Various miracles and supernatural events are attributed to her intercession.