When something is pleasing to us, we say, “That’s good!” This is the meaning of the word, “good,” in the creation story of Genesis 1. God looks at his creation along the way and he sees that it is “good.” This is not the same as the word “perfect.” Genesis 1 is not using the concept of “perfection,” which is a different ancient word. When God sees, “it is good,” it’s more like a cook who is tasting his special chili or marinara sauce and says, “Mmmmm, now that’s good!”