Joseph advising and helping Pharaoh is spoken of as if Joseph were Pharaoh's father. AT: "he has made me a guide to Pharaoh" or "he has made me the chief adviser to Pharaoh" (See: [[rc://en/ta/man/translate/figs-metaphor]])
Here "house" stands for the people who live in his palace. AT: "of all his household" or "of all his palace" (See: [[rc://en/ta/man/translate/figs-metonymy]])
Here Joseph means that he is ruler in second place to Pharaoh, the king of Egypt. This understood information can be made clear. (See: [[rc://en/ta/man/translate/figs-explicit]])