Genesis 43:32

And they served him by himself, and them by themselves, and the Egyptians who were eating with him by themselves, for Egyptians {could not dine} with Hebrews, because that [was] a detestable thing to Egyptians.

Genesis 46:34

Then you must say, 'You servants [are] men of livestock from our childhood until now, both we and also our ancestors,' so that you may dwell in the land of Goshen, for every shepherd [is] a detestable thing to Egyptians."

Exodus 8:26

And Moses said, "To do so [is] not right, because we will sacrifice to Yahweh our God a thing detestable to the Egyptians. Look, [if] we sacrifice before their eyes the thing detestable to the Egyptians, will they not stone us?

Genesis 31:54

And Jacob sacrificed a sacrifice on the hill, and he called his kinsmen to eat the meal. And they ate the meal and spent the night on the hill.

Genesis 43:16

When Joseph saw Benjamin with them he said to the one who [was] over his household, "Bring the men into the house and slaughter and prepare [an animal], for the men shall eat with me at noon."

Treasury of Scripture Knowledge

Summary

And they set on for him by himself, and for them by themselves, and for the Egyptians, which did eat with him, by themselves: because the Egyptians might not eat bread with the Hebrews; for that is an abomination unto the Egyptians.

For that is an abomination

General references

Bible References

Eat bread

Genesis 43:16
When Joseph saw Benjamin with them he said to the one who [was] over his household, "Bring the men into the house and slaughter and prepare [an animal], for the men shall eat with me at noon."
Genesis 31:54
And Jacob sacrificed a sacrifice on the hill, and he called his kinsmen to eat the meal. And they ate the meal and spent the night on the hill.

For that is an abomination

Exodus 8:26
And Moses said, "To do so [is] not right, because we will sacrifice to Yahweh our God a thing detestable to the Egyptians. Look, [if] we sacrifice before their eyes the thing detestable to the Egyptians, will they not stone us?

General references

Genesis 44:2
And my cup--the cup of silver--you shall put into the mouth of the sack of the youngest, and the money for his grain. And he did according to the word of Joseph that he had commanded.
Proverbs 23:1
When you sit to eat with a ruler, you shall surely observe what [is] before you,