מדרש על משלי 8:24

A philosopher once asked Rabbah Gamliel and said to him, ''Your God is only a great artist because he found great materials that helped him: tohu and vohu, darkness, spirit, water, and the depths." Rabbi Gamliel responded to him: "Your spirit should blow! Regarding all of them, the term 'creation' is written: tohu and vohu, as it says (Isaiah 45:7), 'He makes peace and creates evil'; darkness, 'He fashions light and creates darkness'; water (Tehillim 148:5), 'Praise the heavens and the waters' - why? - for 'He commanded and they were created'; spirit (Amos 4:13), 'For behold he fashions mountains and creates spirit'; the depths (Mishlei 8:24), 'When there were no depths, I was created.'"