19. When you besiege a city for a long time, making war against it to take it, you shall not destroy its trees by using an ax on them, for you can eat their fruit; you must not cut them down, for is the tree of the field a man, that it should be besieged by you?
20. Only the trees which you know are not trees for food you may destroy and cut down, that you may build siege works against the city that makes war with you until it falls.