 Even though He possesses power over everything, the manner of His will is such that it constantly attaches itself to a single object, the best among two opposites. Certainly, if He willed evil He would be capable of doing it, but His will desires nothing but what is good only. (Tiqqun n.23: 24 [my translation]; cf. Guide III:25 where Maimonides states that God acts in the best way) 