Genesis 43:32-33

32Then they served him by himself, and 1Joseph’s brothers by themselves, and the Egyptians who ate with him by themselves; because the Egyptians could not eat bread with the Hebrews, for that is an 2abomination to the Egyptians.

33Now they 3were seated before him, from 4the firstborn according to his birthright to the youngest according to his youth, and the men looked at one another in astonishment.