For almighty God. . ., because he is supremely good, would never allow any evil whatsoever to exist in his works if he were not so all-powerful and good as to cause good to emerge from evil itself. 177
Catechism number 320
God created the universe and keeps it in existence by his Word, the Son "upholding the universe by his word of power" (Heb 1:3), and by his Creator Spirit, the giver of life.