The Covenant of Bechukotai and the Mitzva of Shemitta

Why does the Torah depart from the chronological sequence, and suddenly introduce at the end of Sefer Vayikra commandments (specifically Shemitta and Yovel), and a covenant which had been communicated to the Jewish people much earlier? Perhaps this odd placement allows us to view these laws through the prism of the Temple and its sanctity, emphasizing that the three central elements of place, time and the individual are meaningful not only in the Temple, but everywhere.