God is now going to tell them how they need to treat the land when they receive the Promised Land. That they need to give it rest. Man, since the fall, being self-centered wants to think that God only cares about us, but He said that creation was good before man was every created. He cares about the land and gives them specific instruction of how they are to treat it. This does match practical experience in farming, so the world can recognize the need to give land rest. While this is ceremonial law, since it is requirements for when they receive the land but we should also remember our responsibility to be good masters of the land that God has given us. Christ did not just come to save men. He came to save all of Creation.