…when the LORD your God brings you to the land…to give to you great and goodly towns that you did not build…Watch yourself, lest you forget the LORD… Why stress that Israel did not build the towns? People who never worked for what they have, explains the Malbim, are susceptible to not appreciating their good fortune. And so particularly because they’re inheriting a “ready-made” land the people are warned lest you forget the LORD Who brought you out of the land of Egypt, from the house of slaves.