What’s Good

God said, “Let there be light,” and light exploded into existence. God evaluated the light and saw that it was perfect according to his plan, and he made the light distinct from the darkness. — Genesis 1:3–4
I once bought a gold 1968 Ford Mustang because I thought it was a good deal. I liked the look and the ride, and I could afford the payments. But randomly, maybe once in three months or twice in one week, I could be driving down the freeway, and the engine would die and refuse to start. The car dealership couldn’t fix it, so they gave me an exceptional deal on a trade-in: a white Mustang, which turned out to be a good deal.
I’m wondering what makes a good or bad deal. For anything to be good, I must have a basis for comparison with something that is not so good.
A tire wrench is good when I’m stranded on the side of the road with a flat tire. Food is good when I’m hungry, but not so much when I’m already stuffed. When something is really good, I can’t think of anything better.
I suppose everyone who has picked up a Bible has read the first few verses of Genesis. At the end of each day of creation, God evaluated his work and saw that it was good.
What was the basis for God’s comparison? Perhaps, because he could see the future as well as we see the past, he knew his work was perfect for what he wanted to accomplish.