Deuteronomy 23:4

Ver. 4. Because they met you not with bread and water— It was a piece of ancient hospitality, to give strangers in their travels refreshment of bread and water; that is, of meat and drink. The Israelites, therefore, might well expect this civility from the Ammonites and Moabites, not only as fellow-creatures, but as their kindred people; and further still, on account of the respect which they had shewed them. See chap. Deuteronomy 2:19.