Numbers 10:32-34

³²And it shall be, if thou wilt go with us, yea, it shall be, that what goodness the LORD shall do to us, the same will we do to thee.

³³And they departed from the mount of the LORD three days' journey: and the ark of the covenant of the LORD went before them in the three days' journey, to seek a resting-place for them.

³⁴And the cloud of the LORD was upon them by day, when they went out of the camp.