20:14-21 The nearest way to Canaan from the place where Israel encamped, was through the country of Edom. The ambassadors who were sent returned with a denial. The Edomites feared to receive damage by the Israelites. And had this numerous army been under any other discipline than that of the righteous God himself, there might have been cause for this jealousy. But Esau hated Jacob because of the blessing; and now the hatred revived, when the blessing was about to be inherited. We must not think it strange, if reasonable requests be denied by unreasonable men, and if those whom God favours be affronted by men.

19. if I and my cattle drink of thy water, then I will pay for it—From the scarcity of water in the warm climates of the East, the practice of levying a tax for the use of the wells is universal; and the jealousy of the natives, in guarding the collected treasures of rain, is often so great that water cannot be procured for money.