Midrash su Deuteronomio 31:10

(Exodus 12:2) "The beginning of the months": We are hereby apprised that Nissan is the beginning for the months. And whence do we derive (the same for) the reign of kings? From (I Kings 6:1) "In the fourth year of Solomon's reign over Israel, in the month of Ziv (Iyyar), the second month," (his reign having begun with the first month, Nissan). And whence do we derive (the same for) festivals (i.e., that one is not in transgression of delaying his vows until three consecutive festivals have passed)? From (Devarim 16:16) "… the festival of matzoth (in Nissan), and the festival of Shavuoth, and the festival of Succoth." We find, then, that Nissan is the beginning for months, for kings, and for festivals. R. Nathan and R. Tzaddok say: Also for house rentals (i.e., If one says: I am renting it to you for this year, the understanding is until the beginning of Nissan.) But this does not apply to (the reckoning of) years, shemitah, Yovloth, planting (in respect to arlah [viz. Leviticus 19:23]) or (the tithing of) greens, in which respect it is written (Devarim 31:10-11) "At the end of seven years, in the time of the year of the shemitah … when all of Israel, etc.", and (Exodus 34:22) "and the festival of the ingathering, the circuit of the year."

(Fol. 41) MISHNAH: How was the chapter dealing with a king to be read on the eve following the first day of Tabernacles? On the eighth year, immediately after the closing of the seventh, a wooden stand would be erected in the sanctuary, whereupon the king would sit, as it is said (Deut. 31, 10) At the end of every seven years, at the fixed time of the year of release, on the feast of Tabernacles, etc. The officer of the congregation would take a Holy Scroll and hand it over to the chief of the congregation, then the chief in return would hand it over to the associate priest, the associate-priest would give it to the High-priest and the High-priest in return would give it to the king and the king would accept it while standing, and sit down afterwards and read [the chapter concerning Kings]. King Agrippa was accustomed to accept it while standing and would also read it while standing, and the Rabbis praised him for this act, and when he would reach the passage (Deut. 17, 15) Thou mayest not set over thee a stranger who is not thy brother, tears would roll down from his eyes. The Rabbis then said: "Do not be afraid. King Agrippa, thou art our brother, thou art our brother." Then he would read from the beginning of Deut. [up to Chapter 6, 4].