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.

This is the law of the Nazirite who voweth, and of his oblation unto Jehovah for his separation, besides that which he is able to get: according to his vow which he voweth, so he must do after the law of his separation.