It will come about
This phrase is used here to mark an important event that is about to happen in the story. If your language has a way for doing this, you could consider using it here.
asks, 'What is your occupation?' that you should say
This is a quotation within a quotation. It can be stated as an indirect quotation. AT: "asks you about what kind of work you do, you should say" (See: rc://en/ta/man/translate/figs-quotesinquotes and rc://en/ta/man/translate/figs-quotations)
you should say, 'Your servants have ... both we, and our forefathers.'
This is a quotation within a quotation. It can be stated as an indirect quotation. AT: "you should say that you have ... both you and your forefathers" (See: rc://en/ta/man/translate/figs-quotesinquotes and rc://en/ta/man/translate/figs-quotations)
Joseph's family are to refer to themselves as "your servants" when they speak to Pharaoh. This is a formal way of speaking to someone with greater authority. It can be stated in the first person. AT: "We, your servants" (See: rc://en/ta/man/translate/figs-123person)
every shepherd is an abomination to the Egyptians
The abstract noun "abomination" can be translated with the adjective "disgusting." AT: "Egyptians think shepherds are disgusting" (See: rc://en/ta/man/translate/figs-abstractnouns)