Moshe gives the laws about the first fruits—a token of gratitude to the Lord; explains about the portion applicable to the Levites and the poor; details how blessings and curses are to be proclaimed on Mount Gerizim and Mount Ebal; says that, as God chose His people, His people, in consequence, also chose Him. Moshe clarifies that only now, 40 years after arriving in the desert, have the Bnei Israel acquired a heart to understand, eyes to see and ears to hear.
Ki Tavo 5783
"And when you come to the land that the Lord your God is giving you as an inheritance, and you possess it and dwell in it, you shall take some of the firstfruits of all the fruit of the ground, which you harvest from your land that the Lord your God is giving you, and you shall put them in a basket, and you shall go to the place that the Lord your God will choose, to make his name to dwell there. And you shall go to the priest who is in office at that time and say to him, 'I declare today to the Lord your God that I have come into the land that the Lord swore to our fathers to give us.'"