Genesis 43:31-32 ▼

31 Then he washed his face and came out, and, restraining himself, said, “Let the meal be served.”

32 So the servants served Joseph by himself [in honor of his rank], and his brothers by themselves, and the Egyptians who ate with him by themselves, because [according to custom] the Egyptians could not eat food with the Hebrews, for that is loathsome to the Egyptians.