Genesis 50:4

“And when the days of his mourning were past, etc.] The forty days before mentioned, in which both the Egyptians and Jacob’s family mourned for him. An Arabic writer f1921 says, the Egyptians mourned for Jacob forty days, which was the time of embalming; but the text is express for sventy days: Joseph spake unto the house of Pharaoh; to the court of Pharaoh, the principal men there; so the Targum of Jonathan and the Septuagint version, to the great men or princes of the house of Pharaoh: it may seem strange that Joseph, being next to Pharaoh in the administration of the government, should make use of any to speak for him to Pharaoh on the following account. It may be, that Joseph was not in…”

“Joseph spake unto the house of Pharaoh, &c.--Care was taken to let it be known that the family sepulchre was provided before leaving Canaan and that an oath bound his family to convey the remains thither. Besides, Joseph deemed it right to apply for a special leave of absence; and being unfit, as a mourner, to appear in the royal presence, he made the request through the medium of others.”

“- The Burial of Jacob 10. אטד 'āṭâd Atad, “the buck-thorn.” 11. מצרים אבל 'ābêl-mı̂tsrayı̂m, Abel-Mitsraim, “mourning of Mizraim,” or meadow of Mizraim. This chapter records the burial of Jacob and the death of Joseph, and so completes the history of the chosen family, and the third bible for the instruction of man. Genesis 50:1-3 After the natural outburst of sorrow for his deceased parent, Joseph gave orders to embalm the body, according to the custom of Egypt. “His servants, the physicians.” As the grand vizier of Egypt, he has physicians in his retinue. The classes and functions of the physicians in Egypt may be learned from Herodotus (ii. 81-86). There were special physicians for…”

“50:4-6 Joseph needed Pharaoh’s permission to leave his post temporarily to bury his father in Canaan. Pharaoh readily granted this freedom to the former slave.”