Numbers 9:18

(על פי ה’ יסעו (18 ” AT THE COMMANDMENT OF THE LORD [THE CHILDREN OF ISRAEL] JOURNEYED — We have learned in the Boraitha dealing with “the structure of the Tabernacle” (s. 13), “As soon as the Israelites set forth on a journey the pillar of cloud rolled itself up (contracted itself) and extended itself out above the camp of the sons of Judah, like a beam, whereupon they blew a “Tekiah”, a “Teruah”, and another “Tekiah”. It (the cloud) did not, however, move off until Moses said, (Numbers 10:35): “Rise up, O Lord!” — the latter statement is to be found in the Sifrei Bamidbar 84:5 (on the verse quoted) — and then the banner of the camp of Judah marched forward. ועל פי ה' יחנו AT THE COMMANDMENT OF THE LORD THEY ENCAMPED — As soon as the Israelites encamped the pillar of cloud rose in a column and extended itself above the camp of the sons of Judah like the roof of a hut, and did not depart until Moses said, (Numbers 10:36), “Return, O Lord, unto the myriads of thousands of Israel!” — You must say (admit; more lit., be saying) that this is the meaning of (Numbers 10:23) “at the commandment of the Lord [they encamped and at the commandment of the Lord they journeyed ...]” but also by the agency of Moses (Sifrei Bamidbar 84:5).

עַל־פִּ֣י יְהֹוָ֗ה יִסְעוּ֙ בְּנֵ֣י יִשְׂרָאֵ֔ל וְעַל־פִּ֥י יְהֹוָ֖ה יַחֲנ֑וּ כׇּל־יְמֵ֗י אֲשֶׁ֨ר יִשְׁכֹּ֧ן הֶעָנָ֛ן עַל־הַמִּשְׁכָּ֖ן יַחֲנֽוּ׃

At the commandment of the Lord the children of Yisra᾽el journeyed, and at the commandment of the Lord they encamped: as long as the cloud abode upon the tabernacle they remained encamped.