Moses tells Sihon that the Israelites will not steal from the Amorites and requests that Sihon and his people sell food and water to the Israelites; he is not giving a command. Alternate translation: "I expect to have to pay for food so I can eat and to pay for water so I can drink"
Moses is referring to the people of Israel as if they were Moses himself. Alternate translation: "sell to me and my people ... we may eat ... give us ... we may drink" (See: [[rc://en/ta/man/translate/figs-synecdoche]])