Genesis 43:32

And they served for him by himself, and for them by themselves, and for the Egyptians, who ate with him, by themselves; because the Egyptians may not eat bread with the Hebrews, for that is an abomination unto the Egyptians.

Genesis 46:34

Then ye shall say, Thy slaves' trade has been about livestock from our youth even until now, both we and also our fathers, that ye may dwell in the land of Goshen; for every pastor of sheep is an abomination unto the Egyptians.

Exodus 8:26

And Moses replied, It is not convenient to do so; for we shall sacrifice the abomination of the Egyptians to the LORD our God. Behold, if we sacrifice the abomination of the Egyptians before their eyes, will they not stone us?

Genesis 31:54

Then Jacob offered sacrifice upon the mount and called his brethren to eat bread; and they ate bread and slept in the mount.

Genesis 43:16

And when Joseph saw Benjamin with them, he said to the ruler of his house, Bring these men home and slay an animal and make ready; for these men shall dine 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
And when Joseph saw Benjamin with them, he said to the ruler of his house, Bring these men home and slay an animal and make ready; for these men shall dine with me at noon.
Genesis 31:54
Then Jacob offered sacrifice upon the mount and called his brethren to eat bread; and they ate bread and slept in the mount.

For that is an abomination

Exodus 8:26
And Moses replied, It is not convenient to do so; for we shall sacrifice the abomination of the Egyptians to the LORD our God. Behold, if we sacrifice the abomination of the Egyptians before their eyes, will they not stone us?

General references

Genesis 44:2
and put my cup, the silver cup, in the sack's mouth of the youngest, with the money of his wheat. And he did according to the word that Joseph had spoken.
Proverbs 23:1
When thou sittest to eat with a ruler, consider diligently what is before thee;