Numbers 10:32-34

³²And it shall be, if thou come with us, that whatever good Jehovah doeth unto us, so will we do to thee.

³³And they set forward from the mountain of Jehovah and went three days' journey; and the ark of the covenant of Jehovah went before them in the three days' journey, to search out a resting-place for them.

³⁴And the cloud of Jehovah was over them by day when they set forward out of the camp.