CATECHISM OF THE CATHOLIC CHURCH
SECOND EDITION

Paragraphs 292–296

292 The Old Testament suggests and the New Covenant reveals the creative action of the Son and the Spirit, inseparably one with that of the Father. This creative co-operation is clearly affirmed in the Church's rule of faith: "There exists but one God. . . he is the Father, God, the Creator, the author, the giver of order. He made all things by himself, that is, by his Word and by his Wisdom", "by the Son and the Spirit" who, so to speak, are "his hands". Creation is the common work of the Holy Trinity.
293 Scripture and Tradition never cease to teach and celebrate this fundamental truth: "The world was made for the glory of God." St. Bonaventure explains that God created all things "not to increase his glory, but to show it forth and to communicate it", for God has no other reason for creating than his love and goodness: "Creatures came into existence when the key of love opened his hand." The First Vatican Council explains:

This one, true God, of his own goodness and "almighty power", not for increasing his own beatitude, nor for attaining his perfection, but in order to manifest this perfection through the benefits which he bestows on creatures, with absolute freedom of counsel "and from the beginning of time, made out of nothing both orders of creatures, the spiritual and the corporeal. . ."

294 The glory of God consists in the realization of this manifestation and communication of his goodness, for which the world was created. God made us "to be his sons through Jesus Christ, according to the purpose of his will, to the praise of his glorious grace", for "the glory of God is man fully alive; moreover man's life is the vision of God: if God's revelation through creation has already obtained life for all the beings that dwell on earth, how much more will the Word's manifestation of the Father obtain life for those who see God." The ultimate purpose of creation is that God "who is the creator of all things may at last become "all in all", thus simultaneously assuring his own glory and our beatitude."
295 We believe that God created the world according to his wisdom. It is not the product of any necessity whatever, nor of blind fate or chance. We believe that it proceeds from God's free will; he wanted to make his creatures share in his being, wisdom and goodness: "For you created all things, and by your will they existed and were created." Therefore the Psalmist exclaims: "O LORD, how manifold are your works! In wisdom you have made them all"; and "The LORD is good to all, and his compassion is over all that he has made."
296 We believe that God needs no pre-existent thing or any help in order to create, nor is creation any sort of necessary emanation from the divine substance. God creates freely "out of nothing":

If God had drawn the world from pre-existent matter, what would be so extraordinary in that? A human artisan makes from a given material whatever he wants, while God shows his power by starting from nothing to make all he wants.