וּתְקַעְתֶּ֖ם תְּרוּעָ֑ה וְנָֽסְעוּ֙ הַֽמַּחֲנ֔וֹת הַחֹנִ֖ים קֵֽדְמָה׃
And when ye blow an alarm, the camps that lie on the east side shall take their journey.
Numbers
Whenever the Cloud was lifted from the Tent, afterwards, did Bnei Yisroel travel; in the place where the Cloud came to rest, it is there that Bnei Yisroel did camp.