the patriarchs

"Jacob's older sons" or "Joseph's older brothers"

sold him into Egypt

The Jews knew their ancestors sold Joseph to be a slave in Egypt. AT: "sold him as a slave in Egypt" (See: rc://en/ta/man/translate/figs-explicit)

This is an idiom for helping someone. AT: "helped him" (See: rc://en/ta/man/translate/figs-idiom)

This refers to the people of Egypt. AT: "over all the people of Egypt" (See: rc://en/ta/man/translate/figs-metonymy)

This refers to all his possessions. AT: "everything he owned" (See: rc://en/ta/man/translate/figs-metonymy)