בְּאֹ֣הֶל מוֹעֵד֩ מִח֨וּץ לַפָּרֹ֜כֶת אֲשֶׁ֣ר עַל־הָעֵדֻ֗ת יַעֲרֹךְ֩ אֹת֨וֹ אַהֲרֹ֧ן וּבָנָ֛יו מֵעֶ֥רֶב עַד־בֹּ֖קֶר לִפְנֵ֣י יְהוָ֑ה חֻקַּ֤ת עוֹלָם֙ לְדֹ֣רֹתָ֔ם מֵאֵ֖ת בְּנֵ֥י יִשְׂרָאֵֽל׃ (ס)
В скинии собрания, без завесы, которая пред свидетельством, Аарон и его сыновья приведут его в порядок, чтобы он горел с вечера до утра перед Господом; это будет закон навсегда на протяжении их поколений от имени детей Израиля.
Rashi
מערב עד בקר FROM EVENING TO MORNING — Give it its due measure of oil so that it may burn from evening to morning. Our Rabbis estimated half a log of oil as sufficient for the nights of Tebeth which are long, and they ordained a similar quantity for every night of the year, and if any were left over on the shorter nights it did not matter (Menachot 89a).
Chizkuni
אשר על העדות, “which is over the Ark.” The word: על, here cannot be translated as “above, or on,” as we have been told that the candlestick stood on the same floor as the Ark, although it was divided from it by the dividing curtain. This is not the only time that the word על is used as meaning: “beside,” compare Leviticus 24,7, and Exodus 40,3, where there are two more such examples, as well as in Genesis 24,30.