Numbers 10:29-36

And Moses said unto Hobab, the son of Reuel the Midianite, Moses’ father-in-law, We are journeying unto the place of which Jehovah said, I will give it you: come thou with us, and we will do thee good; for Jehovah hath spoken good concerning Israel. And he said unto him, I will not go; but I will depart to mine own land, and to my kindred. And he said, Leave us not, I pray thee; forasmuch as thou knowest how we are to encamp in the wilderness, and thou shalt be to us instead of eyes. And it shall be, if thou go with us, yea, it shall be, that what good soever Jehovah shall do unto us, the same will we do unto thee. And they set forward from the mount of Jehovah three days’ journey; and the ark of the covenant of Jehovah went before them three days’ journey, to seek out a resting-place for them. And the cloud of Jehovah was over them by day, when they set forward from the camp. And it came to pass, when the ark set forward, that Moses said, Rise up, O Jehovah, and let thine enemies be scattered; and let them that hate thee flee before thee. And when it rested, he said, Return, O Jehovah, unto the ten thousands of the thousands of Israel.