John Calvin on Leviticus 26:34-38

34. Then shall the land enjoy her Sabbaths. In order that the observance of the Sabbath should be the more honored, God in a manner associated the land in it together with man; for whereas the land had rest every seventh year from sowing, and harvest, and all cultivation, He thus desired to stir up men more effectually to a greater reverence for the Sabbath. God now bitterly reproves the Israelites because they not only profane the Sabbath themselves, but do not even allow the land to enjoy its prescribed rest; for this repose of the seventh year did not hinder the land from continually groaning under a heavy burden as long as it nourished such ungodly inhabitants. He says, therefore, that the land was disturbed by ceaseless inquietude, and thus was deprived of its lawful Sabbaths, since it bore on its shoulders, as it were, and not without great distress, such impious despisers of God. Moreover, because the whole worship of God is sometimes included by synecdoche in the word Sabbath, (Jeremiah 17:21; Ezekiel 20:12,) He indirectly administers a sharp reproof to His people, because not only is He defrauded of His right by their impiety, but He cannot be duly honored in the Holy Land unless He expels them all from hence; as if He had said, that this was the only means that remained for the assertion of the honor due to His name, viz., that the land should be cleared of its inhabitants, and reduced to desolation; inasmuch as this extorted rest should be substituted in the room of the voluntary Sabbath.