Matthew Poole and continuators on Numbers 10:31

31 And he said, Leave us not, I pray thee, forasmuch as thou knowest how we are to encamp in the wilderness, and thou mayest be to us in stead of eyes .

To direct and guide us: for though the cloud determined them to a general place, yet many particulars might be uncertain and unknown to Moses, wherein Hobab, having long lived in those parts, might be able to advise him, as concerning the conveniences of water for their Cattle, concerning the safety or danger of the several parts by reason of Serpents or Wild-beasts or Enemies in the parts adjoyning to them, that so they might guard themselves better against them. Or, this is to be understood of his directing them not so much in their way, as about great and difficult matters, wherein the counsel he had from God did not exclude the advise of men, as we see in Hobabs father Iethro. Exod. 18. And it is probable, this was the wise son of a wise Father.