Chapter 43

Israel won't let them go back with Benjamin, because he doesn't want to lose him.  So they leave Simeon a captive until they have eaten all the grain they brought home.  Israel tells them to go get more.  They say it's a waste of time if Benjamin does not go with them.  Judah says he will take full responsibility.  Points out they could have gone and come back twice by now if Israel would have let Benjamin go.  Judah also says they are all going to starve if they do not go.

Israel relents. They take twice as much money as the first time.  They take many other gifts also.  Plus they take the money from the first time.  And they go.

All the brothers are brought to Joseph's house.  They confess to the steward about their money being sent home with them the first time.  The steward says he knows about that already.  Simeon is brought in to them.  There does not seem to be much of a celebration. 

2025 - They were afraid because they knew they should have returned to Egypt as soon as they discovered their money still in their sacks the first time.  To anyone in Egypt, it would look like they decided to keep the money and go on home, and hopefully the famine would end, and they'd never have to go back.  It would seem they were willing to leave their brother Simeon  there in Egypt for the duration if it meant they could have both the food AND their money.  They certainly appear to be guilty of something in all this decisions.

Joseph shows up at noon and is overcome with emotion when he sees Benjamin.  He eats alone, as do the Hebrews.  The Egyptians in the house don't eat with the Hebrews because:

32 They served him by himself, and them by themselves, and the Egyptians who ate with him by themselves, because the Egyptians could not eat with the Hebrews, for that is an abomination to the Egyptians. [Gen 43:32 ESV]

I have never read why this is so, though I do remember reading it before.  MSB calls it exclusivism because the Hebrews were foreigners.  Joseph also ate alone because of his rank, per MSB.  That doesn't seem to qualify as abomination though.