Moses hereupon sent a missive to Sihon in which he requested him to permit Israel to pass through the land, promising him that he would see to it that the people should go along by the king's highway, so that he need have no cause to fear any deeds of violence upon married women, or seductions of girls. "We shall even," continued Moses, "pay for the water that is otherwise given freely, and likewise buy food-stuffs from thee at good prices."
This letter to Sihon contained at its close, notwithstanding, the communication that the Israelites would bring war upon Sihon in case he did not permit them to pass through. Moses' assumption, however, that Sihon should permit Israel to pass through sounded in Sihon's ears like a summons to the keeper of a vineyard to permit one to harvest it. Sihon's answer therefore was as follows: "I and my brother Og receive tribute from all the other Canaanite kings to keep off their enemies from access to the land, and now you ask me to give you free access to Canaan!"