CCC 295 We believe that God created the world according to his wisdom.1 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.”2 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.”3

CCC 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.4 God creates freely “out of nothing”:5
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.6

CCC 297 Scripture bears witness to faith in creation “out of nothing” as a truth full of promise and hope. Thus the mother of seven sons encourages them for martyrdom:
I do not know how you came into being in my womb. It was not I who gave you life and breath, nor I who set in order the elements within each of you. Therefore the Creator of the world, who shaped the beginning of man and devised the origin of all things, will in his mercy give life and breath back to you again, since you now forget yourselves for the sake of his laws. .. Look at the heaven and the earth and see everything that is in them, and recognize that God did not make them out of things that existed. Thus also mankind comes into being.7

CCC 298 Since God could create everything out of nothing, he can also, through the Holy Spirit, give spiritual life to sinners by creating a pure heart in them,8 and bodily life to the dead through the Resurrection. God “gives life to the dead and calls into existence the things that do not exist.”9 And since God was able to make light shine in darkness by his Word, he can also give the light of faith to those who do not yet know him.10

CCC 299 Because God creates through wisdom, his creation is ordered: “You have arranged all things by measure and number and weight.”11 The universe, created in and by the eternal Word, the “image of the invisible God”, is destined for and addressed to man, himself created in the “image of God” and called to a personal relationship with God.12 Our human understanding, which shares in the light of the divine intellect, can understand what God tells us by means of his creation, though not without great effort and only in a spirit of humility and respect before the Creator and his work.13 Because creation comes forth from God’s goodness, it shares in that goodness – “And God saw that it was good. .. very good”14- for God willed creation as a gift addressed to man, an inheritance destined for and entrusted to him. On many occasions the Church has had to defend the goodness of creation, including that of the physical world.15

CCC 300 God is infinitely greater than all his works: “You have set your glory above the heavens.”16 Indeed, God’s “greatness is unsearchable”.17 But because he is the free and sovereign Creator, the first cause of all that exists, God is present to his creatures’ inmost being: “In him we live and move and have our being.”18 In the words of St. Augustine, God is “higher than my highest and more inward than my innermost self”.19

CCC 301 With creation, God does not abandon his creatures to themselves. He not only gives them being and existence, but also, and at every moment, upholds and sustains them in being, enables them to act and brings them to their final end. Recognizing this utter dependence with respect to the Creator is a source of wisdom and freedom, of joy and confidence:
For you love all things that exist, and detest none of the things that you have made; for you would not have made anything if you had hated it. How would anything have endured, if you had not willed it? Or how would anything not called forth by you have been preserved? You spare all things, for they are yours, O Lord, you who love the living.20

1 Cf. Wis 9:9.
2 Rev 4:11.
3 Ps 104:24; 145:9.
4 Cf. Dei Filius, can. 2-4: DS 3022-3024.
5 Lateran Council IV (1215): DS 800; cf. DS 3025.
6 St. Theophilus of Antioch, Ad Autolycum II, 4: PG 6,1052.
7 2 Macc 7:22-21,28.
8 Cf. Ps 51:12.
9 Rom 4:17.
10 Cf. Gen 1:3; 2 Cor 4:6.
11 Wis 11:20.
12 Col 1:15, Gen 1:26.
13 Cf. Ps 19:2-5; Job 42:3.
14 Gen 1:4,10,12,18,21,31.
15 Cf. DS 286; 455-463; 800; 1333; 3002.
16 Ps 8:1; cf. Sir 43:28.
17 Ps 145:3.
18 Acts 17:28.
19 St. Augustine, Conf. 3,6,11: PL 32,688.
20 Wis 11:24-26.