בְּאֹ֣הֶל מוֹעֵד֩ מִח֨וּץ לַפָּרֹ֜כֶת אֲשֶׁ֣ר עַל־הָעֵדֻ֗ת יַעֲרֹךְ֩ אֹת֨וֹ אַהֲרֹ֧ן וּבָנָ֛יו מֵעֶ֥רֶב עַד־בֹּ֖קֶר לִפְנֵ֣י יְהוָ֑ה חֻקַּ֤ת עוֹלָם֙ לְדֹ֣רֹתָ֔ם מֵאֵ֖ת בְּנֵ֥י יִשְׂרָאֵֽל׃ (ס)
אין אוֹהל-מוֹעד, דרױסן פֿון פָּרוֹכֶת װאָס פֿאַרן געזעץ, זאָל עס אַהרן און זײַנע קינדער צוריכטן אױף פֿון אָװנט ביז אין דער פֿרי, פֿאַר גאָט; אַן אײביק געזעץ אױף זײערע דוֹר-דוֹרות פֿאַר די קינדער פֿון ישׂראל.
Mishneh Torah, Positive Mitzvot
That the priest shall wash his hands and feet at the time of service, as it is said, “And Aaron and his sons shall wash their hands and feet” (Ex. 30:19).
Mishneh Torah, Positive Mitzvot
To kindle lights in the Sanctuary, as it is said, “…. Aaron and his sons shall set it in order” (Ex. 27:21).
Sefer HaChinukh
The commandment of arranging lights in the Temple: To prepare perpetual lights in front of God, may He be blessed, as it stated (Exodus 27:21), “Aharon and his sons will arrange it,” meaning to say, he will set it up in front of God, may He be blessed. And this is the law of preparing the lights that is mentioned in the Gemara (Yoma 14b).