Catechism of the Catholic Church

"The eternal Father, in accordance with the utterly gratuitous and mysterious design of his wisdom and goodness, created the whole universe and chose to raise up men to share in his own divine life," to which he calls all men in his Son. "The Father... determined to call together in a holy Church those who should believe in Christ." This "family of God" is gradually formed and takes shape during the stages of human history, in keeping with the Father's plan. In fact, "already present in figure at the beginning of the world, this Church was prepared in marvellous fashion in the history of the people of Israel and the old Alliance. Established in this last age of the world and made manifest in the outpouring of the Spirit, it will be brought to glorious completion at the end of time." (293, 1655)