Numbers 9:22

9:22 Whether it was for two days, or a month, or a year, that the cloud prolonged its stay over the tabernacle, the Israelites remained camped without traveling; but when it was taken up, they traveled on.

Numbers 10:2

10:2 “Make two trumpets of silver; you are to make them from a single hammered piece. You will use them for assembling the community and for directing the traveling of the camps.

Numbers 10:33

10:33 So they traveled from the mountain of the Lord three days’ journey; and the ark of the covenant of the Lord was traveling before them during the three days’ journey, to find a resting place for them.