Then Jacob blessed Pharaoh and departed from his presence.
Here is, I. The respect which Joseph, as a subject, showed to his prince. Though he was his favourite, and prime-minister of state, and had had particular orders from him to send for his father down to Egypt, yet he would not suffer him to settle till he had given notice of it to Pharaoh, Gen 47:1.
Commenting on Genesis 47:1-12
And Jacob blessed Pharaoh, and went out from before Pharaoh. When he took his leave of him, he blessed him, in like manner as when he came into his presence, by wishing all happiness to him, and giving him thanks for the honour he had done him, and the favours he had conferred on him and his. And Jacob blessed Pharaoh, and went out from before Pharaoh.
Gen 47:10 After this probably short interview, of which, however, only the leading incidents are given, Jacob left the king with a blessing.