There three ceremonies prescribed in Deuteronomy 26 and 27 that set up the Deuteronomy 28 recitation of blessings and curses in the covenant made with the generation going into the land. Each of these ceremonies is designed to maintain perspective as Israel prospers in their new land. When they neglected them, the nation descended into idolatry, injustice, violence and finally exile. We today are on the same path for the same reasons.