Paragraph 3. THE CHURCH IS ONE, HOLY, CATHOLIC, AND APOSTOLIC

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“Christ bestowed unity on his Church from the beginning. This unity, we
believe, subsists in the Catholic Church as something she can never lose, and
we hope that it will continue to increase until the end of
time.”²⁷⁷ Christ always gives his Church the gift of unity, but
the Church must always pray and work to maintain, reinforce, and perfect the
unity that Christ wills for her. This is why Jesus himself prayed at the hour
of his Passion, and does not cease praying to his Father, for the unity of his
disciples: “That they may all be one. As you, Father, are in me and I am
in you, may they also be one in us, . . . so that the world may know that you
have sent me.”²⁷⁸ The desire to recover the unity of all
Christians is a gift of Christ and a call of the Holy Spirit.²⁷⁹

From The Catechism of the Catholic Church – rosary.team

Original Link: https://www.vatican.va/archive/ENG0015/__P29.HTM