Rabbi Yitzḥak began: “Your saying is exceedingly pure, and Your servant loves it” (Psalms 119:140) – like the goldsmith who inserts the gold into the crucible two or three times until he purifies it, so this portion was stated, repeated, and repeated a third time.2The mitzva to light the lamps in the Tabernacle or Temple was taught in Exodus (27:20–21), Leviticus (24:1–4), and Numbers (8:1–4). This is in order to clarify all the details of the mitzva and help the people remember it (see Maharzu).
The matters can be inferred a fortiori: If this small portion in the Torah is stated, repeated, and repeated a third time, the rest of the portions in the Torah, all the more so.3Other passages, which are far more extensive, must have also been repeated to the people. The mitzvot were taught at Sinai, repeated at the Tent of Meeting, and repeated a third time on the plains of Moav (Maharzu).