Ex. 20:17 “You shall not covet your neighbor’s house; you shall not covet your neighbor’s wife, nor his male servant, nor his female servant, nor his ox, nor his donkey, nor anything that is your neighbor’s.”
I can handle most of this commandment pretty well, especially if I interpret it really narrowly, like a Pharisee would. After all, his house is designed almost exactly like mine, and he, like me, is lacking in servants and livestock.
But I do envy the nearly perfect blueness and sparkling cleanliness of his pool. It is perfect, all the time. Meanwhile, my pool sits under locust trees, and so it gets a steady deposit of leaves into it. Honeybees and wasps seem to mistake my pool for a big flower, and they decide to come in and drown in it. Also, my pool gets a lot more use, and that adds to the maintenance needs. So I have to struggle just to keep it clearer and bluer than the beaches at the Peninsula.